Question

triangle ABC - triangle PQR. angleA = 60°, angleB=40°. Find angleR.​

Answer 1

Answer:

Angle R = 80°

Step-by-step explanation:

Given ∆ABC ~ ∆ PQR

<A=<P=60°

<B = <Q=40

<C= <R = ?

By angle sum propery

<A + <B + <C = 180°

< C = 80°

Hence,<R = 80°