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Equation for area of a circle?

Updated: 4/28/2022
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area of a circle = pi*r2

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Q: Equation for area of a circle?
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Equation to find the area of a circle?

Area of a circle = (pi) (R2)R = radius of the circle = 1/2 of its diameter


What is the equation to find the Area of a circle?

π×(radius)2http:/www.mathwarehouse.com/geometry/circle/area-of-circle.php


If The radius of a circle is 28cm what is its area?

Area of a circle is defined by the equation: A = pi * r2. pi = 3.14159 & r = 28. Substitute into the equation: A = 3.14159 * 282. Area = 2463 cm2.


How do you find the circumference if you have the area of a circle?

Area of a circle = 3.14 * r2 Thus, radius, r = root of ( Area of a circle / 3.14 ) --------- equation 1 Circumference of circle = 2 * 3.14 * r Therefore, from (equation 1), Circumference = 2 * 3.14 * root of ( Area of a circle / 3.14 ). In a nutshell, first find the radius and then the circumference.


What is the area of the base of a cylinder divided by 2?

The area of the base of a cylinder is the same as the area of a circle. The equation for the area of a circle is: Pi r squared


Which equation is the correct one for finding the area of a circle?

2x3.14r


What is the equation to calculate the area of a circle if you know the diameter?

Area= Pi r squared


What is 7 ft diameter insq ft?

If you are referring to a circle, divide the diameter by 2 (to get the radius), then use the standard equation for the area of a circle. For your reference, this is the equation: area = pi x radius2


What equation can be used to find the area in square inches of a circle with a radius of 8 inches?

Area of the circle in square inches = pi*82


What is the standard equation of the circle?

Area of a circle = pi*radius squared Circumference of a circle = 2*pi*radius or diameter*pi


What is the equation to get the area of a circle if you have the radius?

The area of a circle is given by: pi multiplied by the square of the radius. So if the radius is 15, the area is 225pi (225 is 15 squared)


Write a program to calculate the area of a circle The equation to determine the area of a circle is area equals 3.1416radiusradius Assume that the circle has a radius of 4 inches?

Rewrite the above program so that the program accepts any value for the radius then recalculate the area of the circle.