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27 May, 15:21

5. What is the area of a circle with diameter 20 cm? Round your answer to the nearest tenth.

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Answers (2)
  1. 27 May, 15:45
    0
    Answer: 314 cm squared

    Step-by-step explanation:

    20 divided by 2 = 10

    10 x 10 = 100

    100 x 3.14 = 314
  2. 27 May, 15:49
    0
    Area of a circle = πr²

    Radius = 1/2 d = 1/2 (20) = 10

    A = π • 10²

    = π • 100

    = 314.2cm
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