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SOMEONE PLEASE HELP!! In circle P, diameter QS measures 20 centimeters. What is the approximate length of arc QR? Round to the nearest tenth of a centimeter.

SOMEONE PLEASE HELP!! In circle P, diameter QS measures 20 centimeters. What is the approximate length of arc QR? Round to the nearest tenth of a centimeter.
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SOMEONE PLEASE HELP!!

In circle P, diameter QS measures 20 centimeters. What is the approximate length of arc QR? Round to the nearest tenth of a centimeter.

SOMEONE PLEASE HELP!! In circle P, diameter QS measures 20 centimeters. What is the-example-1
User Micael Sousa
by
8.2k points

2 Answers

4 votes

Answer:19.9

Explanation:

User Jozef Chocholacek
by
8.5k points
3 votes
First you need the size of an angle QPR = B = 180° - 123°
Lenght of QP = 10cm
QR = x
QP = r
x² = r² + r² - 2r² × cosB
User Rodgdor
by
8.2k points
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