Question

A, B and C lie on a straight line.

Given that angle
y
= 135° and angle
z
= 103°, work out
x
.

Answer 1

what shape it is

Explanation:

wat is the shape

Answer 2

x = 42

Explanation:

a striaght line = 180°

z + y + x = 180

103 + 135 + x = 180

138 + x = 180

subtract 138 from both sides

138 - 138 + x = 180 - 138

x = 42