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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.
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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.
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May 23, 2018
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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.
Mathematics
high-school
Micael Sousa
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Micael Sousa
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Answer:19.9
Explanation:
Jozef Chocholacek
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May 24, 2018
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Jozef Chocholacek
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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
Rodgdor
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May 29, 2018
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