Question

∆ABC ~ ∆PQR
LA = 60°
LB = 40°
find
LR​

Answer 1

Answer:

The value of angle R is 80°

In triangle ABC,

Angle A + angle B + angle C = 180°

60° + 40° + angle C = 180°

angle C = 180° - 100°

angle C = 80°

Corresponding angles of similar triangle are equal.

Therefore, angle R = angle C = 80°

So, Angle R = 80°...