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| Math Central | Quandaries & Queries |
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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
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