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The formula to calculate the area of a circle is A = πr^2, where A is the area and r is the radius. Given a radius of 4 inches, we can substitute r = 4 into the formula to find the area. Therefore, the area of a circle with a 4-inch radius is A = π(4)^2 = 16π square inches, or approximately 50.27 square inches.
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Continue Learning about Geometry
How many square inches are in a 4 inch circle?
Area of circle in square inches = pi*radius squared
What is the Area of circle of radius 4?
The Area of a circle is Pi (r)(r) so the area of a circle with the radius of 4, would be 16pi
If the radius of a circle is 4 cm what is the area of the circle?
4 cm radius = Area of 50.26548 sq. cm.
What is the width of a 4 inch circle?
If the radius is 4, the width is 8 inches. If it is a 4 inch circle diametrically the width is 4 inches
What is the area of a circle with a radius of 4 cm?
Area of a circle = pi x (radius)2So, if the radius is 4 cm, the area is pi x 42= 50.265 cm2
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