If the diameter of a circle 20 cm is tripled the area will increase from 314.2 cm2 to 2,827 cm2
Divide the diameter by 2 to get the radius. Then use the standard formula for the area of a circle (area = pi x radius2).
314 ft2
Area of circle: pi*20^2 = 400*pi square units
(100 pi) square inches is.
The area of a circle with a diameter of 20 cm is: 314.2 cm2
If the area of a circle is 20 square inches the diameter is: 5.046 inches.
If the diameter of a circle 20 cm is tripled the area will increase from 314.2 cm2 to 2,827 cm2
Divide the diameter by 2 to get the radius. Then use the standard formula for the area of a circle (area = pi x radius2).
The diameter of the circle works out as 20 units to the nearest whole number
314 ft2
314 ft2
Area of circle: pi*20^2 = 400*pi square units
Oh, isn't that a happy little question! If the area of a circle is 100π, we can use the formula for the area of a circle, which is πr^2. So, 100π = πr^2. By solving for the radius (r), we find that the radius is 10 units. And since the diameter is just twice the radius, the diameter would be 20 units.
The area is the same as that of a big 20 ft circle. Assuming the 20 ft refers to the diameter of the circle, its area is 314.159 sq ft (to 3 dp)
A circle with a radius of 10 cm has an area of 314.16 square cm
Area of circle: pi*10^2 = 100*pi square inches