What is the area of a circle with a diameter of 21 centimeters? use 3.14 for pi

Question

What is the area of a circle with a diameter of 21 centimeters?

use 3.14 for pi

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Minh Khuê 2 weeks 2021-07-19T17:26:34+00:00 2 Answers 1 views 0

Answers ( )

    0
    2021-07-19T17:28:16+00:00

    Answer:

    346.185 cm²

    Step-by-step explanation:

    radius = diameter / 2

    Area of a circle = πr²

    radius = 21/2 = 10.5

    Area = 3.14(10.5)²

    Area = 346.185 cm²

    0
    2021-07-19T17:28:18+00:00

    Answer:

    346.4 square centimeters (cm²)

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