Question

In a right angled triangle PQR, = 90° l(PQ) = 12cm, l(PR) = 20cm, find the
length of seg QR​

Answer 1

Answer:

PQR right angle triangle so PR^2= PQ^2 +QR^2

Step-by-step explanation:

1. QR^2= 400-144= 256
2. QR=16

Answer 2

Answer:

16

Step-by-step explanation:

According to Pythagoras theorem,

here is PQ which is 12

PR is 20

Therefore > (12)*(12) + (QR)*(QR) = (20)*(20)

144+ QR square = 400

QR square= 400-144

• QR Square=256
• therefore QR=16