Question

Draw an trianglePQR in which angle p=120°,PQ=PR=4•5cm.
Measure the other two angles​

Answer 1

it's an iscls triangle

p=120°

pq=pr=4.5cm

pq+pr+rq=180°

120°+pq = 180°

pq= 180-120

pq= 60°

so 60/2

other two angles are 30° and 30°