In Triangle Pqr, Angle Q = 90°, Find: Pr, If Pq = 8 Cm and Qr = 6 Cm - Mathematics

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Sum

In triangle PQR, angle Q = 90°, find: PR, if PQ = 8 cm and QR = 6 cm

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Solution

Given:
PQ = 8 cm
QR = 6 cm
PR =?
∠PQR = 90°

According to Pythagoras Theorem,
(PR)2 = (PQ)2 + (QR)2
PR2 = 82 + 62
PR2 = 64 + 36
PR2 = 100
∴ PR = `sqrt100` = 10 cm

  Is there an error in this question or solution?
Chapter 16: Pythagoras Theorem - Exercise 16

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Selina Concise Mathematics Class 7 ICSE
Chapter 16 Pythagoras Theorem
Exercise 16 | Q 7.1

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