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24-04-2018
Mathematics

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The circumference of a circle is 53.38 centimeters. What is the area in square centimeters. Use 3.14 for ×

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Аноним Аноним

24-04-2018

Circumference = πD

53.38 = 3.14D

D = 53.38 ÷ 3.14 = 17

Diameter = 17 cm

Radius = Diameter ÷ 2 = 17 ÷ 2 = 8.5 cm

Area = πr² = 3.14 x (8.5)² = 226.87 cm² (nearest hundredth)

Answer: 226.87 cm²

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