If the circle is 8 inches in diameter, its circumference would be: 25.13 inches (diameter x Pi = circumference)
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An 8-foot diameter circle has a circumference of about 25.132 inches.
The circumference of an 8-inch circle is: 25.1 inches.
If the circle has a diameter of 8 inches, it's 50.265 square inches. If the circle has a radius of 8 inches, it's 201.06193 square inches. In the odd case that the circle has a circumference of 8 inches, it's 5.09296 square inches.
You need to specify what the '8 inches' represents!!! Is it radius, diameter, or all the way round (circumference).
radius of a circle = 4 inchesFormulas:Circumference of a circle = 2π radiusradius =circumference/2π=8π/2π=8/2= 4