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Mathematics 9 Online
OpenStudy (anonymous):

The circumference of a circle is 36 cm. Find the diameter, the radius, and the length of an arc of 200°. A. 36 cm; 72 cm; 10 cm B. 72 cm; 18 cm; 190 cm C. 18 cm; 36 cm; 10 cm D. 36 cm; 18 cm; 20 cm

OpenStudy (anonymous):

C= 2πr right? Substitute C = 36 cm and solve for r (radius)

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