1.

In the right angled triangle PR=13cm and QR=5cm find PQ

Answer»

ANSWER

PQ = 12 cm.

Step-by-step explanation:

TRIANGLE PQR is RIGHT angled triangle

∴By PYTHAGORAS Theorem,

PR² = PQ² + QR²

13² = PQ² + 5²

169 = PQ² + 25

169 - 25 = PQ²

∴ PQ² = 144

∴ PQ = 12             .............Taking Square ROOT of both sides

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