Question

In ∆PQR, angleP=30, angleQ=90, angleR=60, If PR=6 cm then PQ=________

Answer 1

PR=6CM

but we know that PR = PQ +PR

                            6cm =  PQ +PR

but we know that QP is half of PQ

6cm =   2cm + 4cm

so PQ = 2cm

Answer 2

HEY MATE!!..
The answer to your question is:
GIVEN:
In triangle PQR
angle P=30
angle R= 60
angle Q=90
PR=6cm
Let PQ =B
PQ=> cos 60 =1/2
PQ/PR=1/2
B/6=1/2
B=1/2 ×6
B=3cm
HOPE IT HELPS YOU!!!..