Question

An isosceles triangle has an angle that measures 120°. Which other angles could be in that isosceles triangle? 120 50 10 30

Answer 1

30
Because the sum of a triangle is 180.
Working:
180 - 120= 60
60 divided by 2 = 30 ( an isosceles triangle’s base angles are the same so if 120 is given the remaining two angles are the same )

Answer 2

30°

Explanation:

First angle = 120°

Remaining two angles would be congruent.

`Measure \: of \: other \: \angle s \\ \\ = (180 \degree - 120 \degree)/(2) \\ \\ = (60 \degree)/(2) \\ \\ = 30 \degree`