Question

The sum of two angles of a triangle is equal to it's third angle. What is
the measure of third angle :
(a) 30° (b) 45° (c) 60°
(d) 90°​

Answer 1

Answer:

x + y = z

x+ y + z = 180

x+ y +x + y = 180

2(x+ y) = 180

x + y = 90

z = 90

Answer 2

Answer:

Answer is 90° . Please mark me as brainliast. Hope it helps.