Question

In right angled triangle PQR right
angled at Q.
If PQ=3cm
andPR=5cm .What is RQ​

Answer 1

Answer:

QR=4cm

Step-by-step explanation:

PR (Hypotenuse)=5cm

PQ(Perpendicular)=3cm.

By Pythagoras theorem,

PR2=PQ2+QR2

QR=√25-9=√16=4cm.

Answer 2

Answer:

By Pythagoras theorem

PR²=PQ²+QR²

5²=3²+QR²

25=9+QR²

25-9=QR²

16=QR²

√16=QR

4=QR

So, QR=4cm