1.

Triangle PQR is a right angled at vertex R. Calculate the length of sidePR, if PQ=25 cm and QR = 20 cm.*​

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ANSWER:

May be the answer of this question is.

By using Pythagoras THEOREM.

H*2=B*2+P*2

PQ*2= QR*2 + PR*2

25*2 = 20*2 + PR*2

625= 400 + PR*2

625-400=PR*2

225=PR*2

PR = underoot 225

PR = 15 cm.

HOPE it's helpful to you.

ACCORDING to my point of view this is the correct answer.



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