Question

∆ABC ~ ∆PQR. angle A = 60°, angle B = 40°. Find angle R.​

Answer 1

Answer:

in ∆ABC ~ ∆PQR ,Angle R =180°-(60°+40°)=80°

Answer 2

Answer:

The value of angle R is 80°

Step-by-step explanation:

In triangle ABC,

AngleA + angleB + angleC = 180°

60° + 40° + angleC = 180°

angle C = 180° - 100°

angleC = 80°

Corresponding angles of similar triangle are equal.

Therefore, angle R = angle C = 80°

So, AngleR = 80°...