 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from richie: i am building a fish tank. it is going to be an irregular pentagon. the sides are going to be there will 3 right angles A, B, E my question is how to figure out the degree of the angles that are not right angles (C,D)? |
Richie,
The angles at C and at D are 135 degrees (= 180 - 45). What you have is a 24" by 24" square, and you are removing a corner in the shape of a right triangle whose legs have lengths of 16". The length of the oblique side CD is, of course, 16*sqrt (2) inches, or about 22.63".
Chris
| ||
| ||
| ||
 |
 |
|
|
||
 |
||
| * Registered trade mark of Imperial Oil Limited. Used under license. | |
|
Math Central is supported by the University of Regina and the Imperial Oil Foundation.