Question

A, B & C lie on a straight line.

D, B & Elie on a different straight line.
Z CBE = 630
Work out the angle marked x.
D
X
С
А
B
E
PB Use Keypad

Answer 1

x = 27°

Explanation:

m<D

m<CBE = 63° (Given)

m<CBE = m<ABD (vertical angles)

m<ABD = 63° (substitution)

x = 180 - (m<ABD + m<D) (Sum of triangle)

x = 180 - (90 + 63)

x = 27°