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In PQR below QR=5,5cm and QRP=60° calculate the length of PR​

User Jozi
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Answer:

Hi there, the length of PR can be calculated using the Pythagorean theorem. PR = √(QR² + QR² - 2*QR*QR*cos(60°)) = √(5² + 5² - 2*5*5*cos(60°)) = 8.66 cm.

User JD Allen
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