If the vertex angle of an isosceles triangle is 50°, what is the number of degrees in one of the base angles?

1 Answer
Namkhang
Dec 15, 2016

One of the base angles would be 65°.

Explanation:

This being that since an isosceles has 2 similar sides/angles. And all triangles add up to 180°. If you subtract your vertex angle (50°) from 180°. You get 130°. This is now the degrees for both of your base angles. Divide this number by 2 (because you have 2 base angles) and you get 65°.

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