Question

Pqr in which angle p 120 degree PQ is equal to PR PR is equal to 3.5 CM angle q and r

Answer 1

Step-by-step explanation:

in triangle PQR,

PQ = PR

therefore, angle Q = angle R because if two side are equal in a triangle there opposite angle are equal.

now, angle( P+Q+R)=180

120+ Q+Q = 180 (hence, Q=R)

120 + 2Q = 180

2Q = 180- 120

2Q = 60

Q = 60/2

Q = 30.

we know that , Q=R

therefore,. angle Q = 30degree and angle R= 30degree.