Math Central - mathcentral.uregina.ca
Quandaries & Queries
Q & Q
 Topic: circle sector
start over

3 items are filed under this topic.

 Page1/1
 Form a cone from a circle sector 2018-08-12 From Tinashe:A 216 sector of a circle of radius 5cm is bent to form a cone. Find the radius of the base of the cone and its vertical angle.Answered by Penny Nom. Cutting a round cake so that it doesn't dry out 2014-08-26 From James:I'm wondering if there's a simple way to calculate the area between two parallel chords of a circle equidistant from its diameter, or if I have the area, to find the distance between the two chords. Here's my "problem". You may have heard of the way of cutting a round cake so that it doesn't dry out - make two parallel cuts (chords) the length of the cake, take the middle piece, then push the two pieces together. So I know the area of a 12" cake, and I want say, exactly an eighth of the cake. How wide do I cut the centre piece? Now to get even more difficult, the next day I want another eighth from the centre. How wide do I cut the next pieces, and so on...? Thanks, JamesAnswered by Harley Weston. An exclusion zone around a triangle 2008-09-07 From Awrongo:A long time ago Mr Gibson found an island shaped as a triangle with three straight shores of length 3 km,4 km and 5 km. He declared an 'exclusion zone' around his island and forbade anyone to come within 1 km of his shore. What was the area of his exclusion zone?Answered by Stephen La Rocque and Penny Nom.

 Page1/1

 Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.
 about math central :: site map :: links :: notre site français