Question

in PQR <Qis right angle PR=4cm and QR=9 the find PQ​

Answer 1

Answer:

Step-by-step explanation:

according to pythogorean theorem

hypotenuse^2=side1^2+side2^2

as Q is the right angle

pr^2=pq^2+qr^2

16=pq^2+81

pq^2=-81+16=-65

pq=sqrt(-65)