approximate radius of a circle with a circumference of 198 centimeters. Use 3.14 for π.
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Answer:
For example, a wheel with a 10-inch diameter will have a circumference of 10 x 3.14, or 31.4 inches. To calculate using the radius, multiply the radius by 2 and then multiply that result by pi. For a wheel with a radius of 6 inches, use the equation (2 x 6) x 3.14 to get a circumference of 37.68 inches.
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Answer:
Radius, r = 31.5 cm (approx.)
Step-by-step explanation:
Circumference of a circle = 2πr = 198 cm where
r= radius, π = 3.14
∴ 2πr = 198 cm
3.14r = 198/2 cm
3.14r = 99 cm
r = 31.52866.. cm = 31.5 cm (approx)
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