How many square inches are in a circle with a 6 inch diameter?

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How many square inches are in a circle with a 6 inch diameter?

2007-01-31 05:06:26 · 3 answers · asked by Wipper Snipper 2 in Science & Mathematics ➔ Mathematics

3 answers

Area of a circle is given by radius squared * pi.

Radius is 1/2 diameter, or in your case, 3 inches.

So Area = 3^2 pi or 9 pi which is 28.27 square inches.

Hope this helps!

2007-01-31 05:12:00 · answer #1 · answered by disposable_hero_too 6 · 1⤊ 0⤋

Use the formula for the area of a circle
A = pi r squared
A = 3.14 (9)
this product will give the approximate # of square inches.
the exact answer would be 9pi

2007-01-31 05:35:55 · answer #2 · answered by Ray 5 · 0⤊ 0⤋

d = 6
this means r =3

Area = pi * r^2
Area = 9pi about 28 sq. inches

2007-01-31 05:14:13 · answer #3 · answered by krumenager 3 · 0⤊ 0⤋