You cannot: there is no conversion. A radius is a measure of length in 1-dimensional space (from the cenrte of the circle to its circumference) while a square foot is a measure of area in 2-dimensional space. The two measure different characteristics and, according to the most basic principles of dimensional analysis, any attempt at comparisons or conversions between the two are fundamentally flawed.
divide the square feet by pi that gives you the radius squared find the square root and get the radius
Square feet are square feet. There is not a measure called radius square feet.
In order to do this, you must have the radius in feet.-- Square the radius (multiply it by itself)-- Multiply the answer by 'pi'. (3.142 is close enough)-- The answer is the area of the circle, in square feet.
A circle with a radius of 14 feet has an area of 615.75 square feet.
Radius of circle: square root of (64/pi) = 4.5135166683 feet
The area of a circle with radius r feet is pi*r*r square feet.
If the radius of a circle is 80 inches, then the area of the circle is 139.6263 square feet. (rounded)
The area of a circle with a radius of 3 feet is: 28.27 square feet.
A circle with a radius of 6.8 feet has an area of 145.27 square feet.
A circle with a radius of 2.00 feet has an area of 12.57 square feet.
A circle with a radius of 35 feet has an area of 3,848.45 square feet.
The 4' x 4' figure has an area of 4' x 4' = 16 square feet. The area of a circle is pi times the square of the radius. If a circle has an area of 16 square feet, then pi x r2 = 16 ft2. We'll take the 16, divide it by pi and the answer will be the square of the radius. And 16/pi = about 5.093 square feet and the square root of that is about 2.257 feet. The radius of a circle with an area of 16 ft2 is about 2.257 feet. The diameter of a circle is twice its radius, and in this case, 2.257 feet x 2 will have be the circle with a diameter = 4.514 feet.