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Anna11 [10]
3 years ago
10

A triangle PQR is right angled at R, with PQ=80cm and R=60cm. find QR?

Mathematics
1 answer:
AveGali [126]3 years ago
6 0

Answer:

Solution given:

A triangle PQR is right angled at R, with hypotenuse{h}PQ=80cm

and

base[b]PR=60cm.

perpendicular [P]= QR

by using Pythagoras law

h²=p²+b²

80²=QR²+60²

QR²=80²-60²

QR=\sqrt{2800}

QR=20\sqrt{7}=52.9=53cm

QR=53cm.

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