Posted by **Venus** on Tuesday, September 10, 2013 at 11:08pm.

An isosceles triangle has an interior angle of 26 degrees. Which of the following is a possible degree measure for one of the other interior angles of the triangle?

a) 52 degrees

b) 64 degrees

c) 78 degrees

d) 104 degrees

e) 128 degrees

- Math - Triangles -
**Swaastikaa**, Wednesday, September 11, 2013 at 2:50am
The answer should be c). The sum of angles for a triangle is 180 degrees. Since this is an isosceles triangle, it must have two equivalent angles. Therefore 180-26 = 154 degrees. When we divide 154 by 2, we get 77 degrees. So the possible degree measure is 78.

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