9.2 i think
The formula is pi*r^2
Area of circle = πr2 Exact area = π(14)2 = 196π cm2
A circle with a radius of 11.64 meters has an area of 425.653131998 square meters.
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 with a radius of 2m is: 12.566 m2
Area of circle = πr2 Exact area = π(14)2 = 196π cm2
The area of a circle is equal to pi times the radius squared. A 12 foot radius circle would have an area of exactly 144 pi square feet.
A circle with a radius of 11.64 meters has an area of 425.653131998 square meters.
pi x square of radius
168.56 square inches
There is no way to find the exact area of a circle. The formula for the area is Pi times the radius squared. But Pi is an irrational number -- that is, no matter how many numbers you write it out to, you could always write it further. Since there is no exact value of Pi there can be no exact value of the area based on the diameter. The radius is half that of a diameter. Therefore, if you know the diameter you know the radius. In this case the radius is 3cm and the area of the circle = pi * 32 So the answer is roughly
The area is exactly (324 pi) square feet.
The radius is 9 inches because area of circle is pi*9 squared = 81pi square inches and the diameter is twice the radius which is 2*9 = 18 inches
area = π × tradius² → area = π × 6² = 36π.
The area of a circle with a radius of 14.4 is 651.4
Area of a circle = pi*radius squared
The area of a circle of radius 21 is 1386