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To find area of a circle using diameter, you use this formuler. Area=pi(diameter/2)(diameter/2)

Circumference= 3.14 x Diameter Area of circle= 3.14 x diameter x diameter

In order to find the diameter of a circle if you have the area is to rearrange the formula for the area of a circle to put diameter as the unknown, like so: PIE*d = Area of a Circle d = (Area of a Circle) / PIE Therefore if the area of your circle is 40cm, 40/PIE = 12.73cm and that's the diameter.

Area of a circle = pi times radius squaredDiameter of a circle = 2 times radius

Diameter is 8.64444

The area of a circle with a diameter of 6 units is: 28.27 square units.

A semicircle is 1/2 of a circle. Find the area with the diameter you are given as if you had a whole circle, then divide that answer by 2 to get the area of the semicircle.

To find the diameter of a circle, you will either need to know the area or its circumference. If you know the area: diameter = 2 x squareroot(area / Pi) If you know the circumference diameter = circumference / Pi

Area of Circle = pi (radius)2 So , using this formula we can find the radius and also the diameter. Diameter = 2(radius)

Area = 1/4 of (pi) x (diameter)2

Area of a circle = pi*radius2 Radius = diameter/2

Area of the circle = pi*radius2 = pi*52

ANUS

Divide the circumference by pi, and that will give you the diameter. Then take half of the diameter (the radius), and plug it into the formula for the area of a circle (A=πr²)

Area = Pi(d/2)2 where d = diameter

pi*radius2 = area of a circle radius2 = area/pi radius = square root of (area/pi) diameter = 2*radius

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

The area of a circle is Pi(3.1416)*radius2 if you do not have the radius, it is just half of the diameter.

Area of a circle without pi = (circumference/diameter)*radius2

I assume that you are referring to the area of a circle. You divide the diameter in half to find the radius and then you put it into the formula.

A circle with a diameter of 11 inches has an area of 95.03 square inches.

If the area of a circle is given as 67cm squared, the diameter is 9.236 cm and the circumference is 29.02 cm

The area of a circle is pi(radius)2 Radius is half the diameter. Simply divide the diameter in half and enter it into the equation 3.14(diameter/2)2

The diameter of a circle with an area of 37.68 is 6.92

Area = 33.2 cm2