Question

In pqr p=30 q=90 r=60 if hypotonic pr =10 cm find pq and qr

Answer 1

in triangle pqr,

sin30=qr/pr

1/2= qr/10

therefore,

qr = 5cm

now applying pythagoras theorem,

(pq)² + (qr)² =(pr)²

(pq)² = (10)² - (5)²

pq = √100-25

pq = √75

pq = 8.66 cm