Question

Find the missing angle!

Answer 1

? = 70°

Explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

120° is an exterior angle of the triangle, then

? + 50° = 120° ( subtract 50° from both sides )

? = 70°

Answer 2

missing angle = 70 degrees

Explanation:

180 -120 =60, because supplemenatery angles add up to 180 degrees.

sum of all angles of a triangle = 180. so 180-60-50=70 degrees