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15.707963267948965 square inches. I think.
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That is a very accurate but very wrong answer.
The correct answer is 314.159 sq inches (to 3 dp).
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Yes, the correct answer is 314.159. Here's why:
- The area of a circle can be found by multiplying pi (3.14159...) by the square of the radius. (The radius of a circle is 1/2 the diameter)
- This 20" circle has a radius of 10", so its area is 3.14*10"*10"=314.159
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How many square inches are in the area of a 9.5 inch diameter circle?
70.9 square inches.
How many square inches in a 24 inch Diameter circle?
Area of a circle = (1/2 x diameter)2 x piArea of a 24 inch diameter circle:(12 inches)2 x 3.1416 = 144 square inches x 3.1416 = 452.4 square inches
How many square feet in a 50 inch diameter circle?
Diameter = 50 inches Radius = 25 inches Area of circle = pi x 25 x 25 = 3.1415 x 625 = 1963.44 square inches which is equivalent to 1963.44/144 = 13.63 square feet
How many square inches in a 30 inch diameter circle?
what i do is square it 30x30 = 900 devide it by 100 and x it by 78.5398 =706.858278.5398% is correct for doing it this way.(78.5398163397425)Improved answer:Area of a circle = pi*radius2Area = pi*152 = 706.8583471 square inches
How many square feet in a 72 inch diameter circle?
A 72-inch diameter circle has an area of: 28.3 square feet.
