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Handwriting Mental Maths

Question: In the triangle PQR, angle Q equal 90°, PQ equal 12 cm, PR equal 13 cm find QR length

Posted by: Anonymous on: 17 Sep, 2024
S.chandra
Anchal Mishra
2 Answers by Expert Tutors
Answer

QR is equal to 5 as 12,13,5 is a pythagoros triplet 

Answer by:
Anchal Mishra, Allahabad
Answer

Ans. The length of QR is 5 cm.

Explanation: By Pythagoras Theorem, QR = √(PR² - PQ²) = √(13² - 12²) = √(169 - 144) = √(25) = 5 

Answer by:
S.chandra, Kolkata

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