When you try to figure out an area of a circle, you square the radius, then multiply it by pi to get the area of a circle. A radius square is radius x radius, or radius squared.
The area of a circle with a radius of 7 cm is: 153.9 cm2
The area of any circle is (pi) x (radius)2 .The area of half the circle is just half of that number.
A circle with a radius of 2.5 meters has an area of 19.63 square meters.
A circle with a radius of 3 meters has an area of 28.27 square meters.
A circle with a radius of 11 inches has an area of 380.13 square inches.
A circle with a radius of 11m has an area of ~380.13 m2
The radius of a circle with an area of 380 sq inches is 11 inches.
The area of a circle is: pi times radius squared
Using 3.14 as Pi the area of circle is: 379.94
A = 380 square feet.
Area of the circle: pi*11^2 = 121*pi square units
area of a circle is pi times radius squared. the radius is 11 feet. the area ofthe circle would be 380ft2 since it is a half circle you take half of 380... your answer is 190ft2
5.5 is the radius.
The area of a circle if the radius is 9m 254.5m2
The radius of a circle with the area of 36 is 3.385
The area of a circle of radius 21 is 1386