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777dan777 [17]
3 years ago
8

UB

Mathematics
1 answer:
Vladimir79 [104]3 years ago
4 0

Answer:

  100π square inches

Step-by-step explanation:

The area of a circle is given by ...

  A = πr^2

where r is the radius. The radius of a circle is half the diameter, so your circle with 20 inch diameter has a radius of 10 inches. Putting that value into the formula gives an area of ...

  A = π·(10 in)^2 = 100π in^2

The area is 100π square inches.

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