Question

2. In the given figure, the measure of BAC is 6 cm 2x + 20° 5 cm B 50 5 cm С la) 60 (c) 70 (b)50 (d) 80​

Answer 1

ABC and

A'B'C',

AB= A'B' (Given)

∠B = ∠B'(Given)

BC = B'C' (Given)

Hence, by S.A.S. theorem,

ABC

A'B'C'

Therefore,

By c.p.c.t

∠A = ∠A'

3x = 2x +20

x = 20°

Therefore angle A' = 2x +20

= 60°