Question

In triangle pqr right angled at q, pq=3 and pr=6. find angle p and r

Answer 1

Answer:

make a right angle triangle ∆pqr

q=90°

cosx=3/6

x=cos-1(1/2)

x=60

angle at p =60

∆r=30

Answer 2

Answer:

Hope this explanation helps you.