33 items are filed under this topic.
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The length of an arc |
2019-04-28 |
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From Patrick:
If an arch is 48 inches wide at the base and 30 inches tall at its apex, what is the length of the arch?
Answered by Penny Nom. |
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Radius angle and arc length |
2016-11-24 |
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From pavidthra:
Length or arc 11 and angle of subtended 45.need to find a radius
Answered by Penny Nom. |
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A sector of a circle |
2016-04-21 |
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From mustafa:
In a sector of a circle, the arc length is equal to half the perimeter of a sector.find the area of a sector in terms of r
Answered by Penny Nom. |
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A chord of a circle, the central angle and the radius |
2016-01-26 |
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From Nishan:
If chord length is given along with angle then how to calculate the radius.
Answered by Penny Nom. |
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The distance over a Quonset |
2015-08-20 |
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From jane:
total base of hemisphere is 30 ft
apex height is 20 feet
what is total length over dome
Answered by Penny Nom. |
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A chord and an arc of a circle |
2014-08-06 |
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From Luis:
Hello I am trying to figure out how to get chord lengths of quarter points for a circle. I work with large diameter circles and I need to be able to find chord length from 0 degrees to 90 degrees, 0 degrees to 270 degrees, 270 degrees to 180 degrees and 90 degrees to 180 degrees. Can you please use 100ft. diameter as example and work out the problem. I'm sorry if I use wrong terminology, I'm really bad at math . Thank you in advance for your time and help I really appreciate it.
Answered by Harley Weston. |
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A reversed curved on a railroad track |
2014-06-19 |
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From cherrielyn:
Assuming that earth is a sphere of radius 6380 km,
what is the difference in the latitudes of two cities 270 miles apart
positioned on the same meridian?
Thank you in advanced po! :)
Answered by Penny Nom. |
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A chord length of 2 cm |
2014-03-13 |
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From prema:
I am having only chord length as 2cm. how to find arc length and degree
Answered by Penny Nom. |
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A circle, a chord and an arc |
2013-04-16 |
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From Tim:
Morning,
I was told the chord is 3000mm and the depth of chord is 300mm, I can
find the radius,(1500 squared + 300 Squared) Divided by (300 + 300)
but don't know how to calculate the length of the circle defined by the chord.
Regards
Tim
Answered by Penny Nom. |
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The length of an arc |
2011-08-24 |
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From nuel:
Is there any formula to calculate the arc length from only the chord length and angle between the chord and tangent of the arc at its endpoint ?
Answered by Penny Nom. |
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A sector of a circle |
2011-01-07 |
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From Alice:
the radius of a circle is 7cm the angle of the sector is 68 how do you find the
Answered by Penny Nom. |
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Arc length and Chord length |
2010-03-13 |
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From Darryl:
Is there a formula to determine the chord length of an arc knowing only the arc length and the arc depth (sagitta)? I know you can't find the radius with only these two inputs, but can you find the chord length?
Answered by Harley Weston. |
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Sagitta |
2009-09-10 |
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From Robert:
Can you please tell me if there is a formula to figure out the Sagitta of an
arc when you know the radius, chord length, and arc length?
Answered by Chris Fisher and Harley Weston. |
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Arc length |
2009-07-10 |
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From farhad:
hi
i need to measure length of arc by having only two measurements, first the length of the chord and
the height of the curve.
if i have a simple calculator that haven't sin cos tang (i want to calculate it in my mind)
Answered by Stephen La Rocque. |
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An arched or round top window |
2009-04-07 |
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From Dale:
I need a formula to figure the lineal footage of trim require to trim an arched or round top window. The variables that I have consist of the width of the window the height of the arc and the radius.
Answered by Harley Weston. |
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The length of an arc |
2009-04-04 |
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From Dale:
If I have the length of the chord and the height of the arc can I find the arc length with these dimensions?
Answered by Harley Weston. |
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Finding the Distance Between Two Latitudes |
2008-10-02 |
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From Samua:
Assuming that the Earth is a sphere of radius 4000 miles and that the cities
are on the same longitude (one city is due north to the other). Find the distance between
the cities with the latitudes of 37 degrees 47'36'' and another city with 47 degrees 37'18''. Heeeeeeeeeeelp!
Answered by Janice Cotcher. |
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Arc-length and sector-angle |
2008-08-06 |
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From Benson:
If chord length, radius are given, How to find the sector angle and arc-length
Answered by Janice Cotcher. |
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Chords and arcs |
2008-07-11 |
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From Ronnie:
We are trying to build a semi life size ark decoration , and we are trying to cut the sides out . The curved sides and we can't figure our radius , all we know is that our chord length is 24ft. any suggestions on how to find the radius or maybe even the arc length or circumference or diameter?
Answered by Harley Weston. |
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A space camera circles the Earth |
2008-06-16 |
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From Rita:
A space camera circles the Earth at a height of h miles above the surface. Suppose that d distance, IN MILES, on the surface of the Earth can be seen from the camera.
(a) Find an equation that relates the central angle theta to the height h.
(b) Find an equation that relates the observable distance d and theta.
(c) Find an equation that relates d and h.
(d) If d is to be 3500 miles, how high must the camera orbit above Earth?
(e) If the camera orbits at a height of 400 miles, what distance d on the surface can be seen?
Answered by Penny Nom. |
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Arclength |
2008-06-07 |
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From prem:
i am engineer, i need the formula for calculate the arclength by using only chord length and radius only
Answered by Penny Nom. |
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The length of an arc |
2008-05-12 |
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From patricia:
Find the length of the arc on a circle of radius r = 16 inches intercepted by a central angle [theta] = 60 degrees
Answered by Penny Nom. |
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Chord, radius, arc length and central angle |
2008-04-15 |
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From Cindy:
There is a railroad curve with a chord length of 2000 ft. and a central angle of 35 degrees. What is the radius and arc length of the circular arc?
Answered by Stephen La Rocque. |
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parabolic arch |
2007-10-24 |
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From ABHILASH:
How find parabolic arch perimeter.
Answered by Harley Weston. |
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Arc length and height in a circle |
2007-10-23 |
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From Bruce:
I have been trying to find a formula that relates height of a segment
from the bottommost point of a circle toward the center of the circle to
the corresponding distance along the circumference of the circle
(i.e. at the point on the circumference intersected by a line perpendicular
to that segment). The unknown variable is the height of the segment;
the known variables are the radius of the circle and the distance
along the circumference.
Answered by Stephen La Rocque. |
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Given the arc length and chord length, what is the radius? |
2007-10-10 |
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From Wayne:
I have the actual length of an arc plus the length of the cord. How do I determine the radius of the arc.
Answered by Harley Weston. |
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Arc lengths, central angles and radii |
2007-10-04 |
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From Ashutosh:
Jose can remember that the length of an arc is 440cm, but he cannot remember the radius of the arc or the angle at the center. He does know that the angle was a whole number of degrees and the radius was less than 100cm. Find three possible angles and write down the size of each of the possible radii.
Answered by Stephen La Rocque. |
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The length of an arc |
2007-06-18 |
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From Lenny:
How do you find out the arc length of a sector 50 degrees wide??
Answered by Stephen La Rocque and Penny Nom. |
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The length of a circle's chord |
2005-09-28 |
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From A homebuilder:
find the length of a circle's chord with a known arc length and radius/diameter lengths.
Answered by Penny Nom. |
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Given only the length of an arc & the length of its chord find the radius? |
2005-09-07 |
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From Robert:
Given only the length of an arc (72) & the length of its cord (71), how to find the radius?
Answered by Penny Nom. |
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The length of an arc |
2002-11-27 |
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From Nancy:
If all I have is the length between 2 ends of an arc (72"), how do I find the length of the arc at its apex and the radius?
Answered by Penny Nom. |
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Arc length |
2002-04-17 |
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From Vix:
Find the point on the curve r(t)=(12sint)i-(12cost)j+5tk at a distance 13pi units along the curve from the point (0,-12,0) when t=0 in the direction opposite to the direction of increasing arc length.
Answered by Harley Weston. |
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Length of a line |
1999-10-10 |
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From Dagmara Sarudi:
My question has to do with the length of a diagonal. This problem came up when I thought about the shortest distance between two points, for example walking from one point to another in my neighborhood. I can choose a zig zag route and assuming the blocks I walk are exactly the same length, it shouldn't matter what route I took, the distance I travel should still be the same when I reached my goal. If, on the other hand I could travel in a diagonal line, the distance would be shorter. But what if, in my zig zag motion, the sections get so small the route approaches a diagonal. Shouldn't it be that each separate section added together equals the value of the two original sides? Or would it suddenly equal the value of the diagonal (which, of course was shorter than the two sides added together)?
What gives?
Answered by Chris Fisher and Harley Weston. |
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