Question

In triangle PQR, PQ = PR and <R = 50°, then find the measure of <Q

Answer 1

angle Q=50 since angle Q is opposite to PR
and PR=PQ

Answer 2

Answer:

Given:PQ=QR,of triangle PQR&<R=50° To find:<Q

Solution:PQ=QR, therefore if two side of∆ is equal then it is a isoceleus ∆ so,<P=<Q ( angle opposite to equal side is equal) but, <R=50° therefore <Q=50° because <R=<Q (Prooved above).

,Hence Prooved