The perimeter of the patio is 24 feet.
225 square feet
Surface area for a circle is pi * radius squared If the diameter is 25 feet, then the radius is 12.5 feet, and the square footage is pi * 12.5 * 12.5 Or about 491 square feet
Square feet are square feet. There is not a measure called radius square feet.
Well, If the radius is 6.25 feet, we can use the equation πr2, and assuming that pi (π) is 3.1415, we square 6.25 to get 39.0625, then multiply this by π to get 122.714844 ft2, which we multiply by 1/2 because this is a half circle, not a full circle. Once we multiply by 1/2, we get 61.357422 ft2. So, there are 61.357422 square feet in a patio which is the shape of a half circle and whose radius is 6.25 feet or 6 foot 3 inches.
divide the square feet by pi that gives you the radius squared find the square root and get the radius
Radius = 79/(2*pi) = 12.5732405 feet Area = pi*12.57324052 = 496.643 square feet rounded to 3 dp
Since 'radius' usually applies to circles, a circle with a radius of 17 feet would have an area of 907.92 square feet.
8 Feet
8 feet
It is: 72*pi square feet if the radius is 12 feet and not12 square feet
The area of a circle with radius r feet is pi*r*r square feet.