jackfromsans jackfromsans

02-10-2021
Mathematics

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in a triangle PQR, right angled at Q, PQ=20cm, QR=15cm. find the PR

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02-10-2021

20^2 + 15^2 = c^2
625 = c^2 (find square root of both sides)
c=PR= 25 cm

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