Question

8. An isosceles triangle includes two 56' angles. Which equation could be

used to find the measure of the third angle?

Answer 1

B. x=180-2(56)

Explanation:

Isosceles triangles have 2 angles of equal measure and 1 different measure. we add both measures or multiply them by 2 and then subtract them from 180 (sum of all angle measurements in a triangle) to find the missing measure