Question

A, B & C lie on a straight line.
BD = CD.
∠
BDC = 60° and
∠
ADB = 5°.
Work out
x

Answer 1

Answer:

A, B & C lie on a straight line.

BD = CD.

∠

BDC = 60° and

Answer 2

Answer:

let DBC=y

angle DBC=angle DCB=y (being isosceles triangle)

Now,

y+y+60°=180°(being angle of triangle)

2y=120°

y=60°

again,

x°+65°+60°=180°

x°=180-125

x°=55°