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24 October, 09:12

The diameter of a round dinner plate is 10 inches. What is the area of the plate?

A. 314 square inches

B. 39.25 square inches

C. 39.25 inches

D. 78.5 square inches

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Answers (1)
  1. 24 October, 10:15
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    A=πrˆ2

    Since the diameter is 10 inches, the radius must be half of that: 10/2=5.

    A=π (5) ˆ2

    A=25π

    A=25π or 78.54 inches
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