Question

Find ` x ' in the adjacent figure , if AB= AC.
( Use a suitable property)

Answer 1

AB=AC then angle ABC = angle ACB

ABC+ACB= 110°

X+X=110°

2X=110°

X=110°/2

X=55°

Answer 2

∠ACB = ∠ABC (given)

x = x

110° = x+x (exterior angle property)

110° = 2x

110° = x

2

55° = x