A radius is used to measure a circle; squares do not have a radius, they would be measured by a side. If a square has a side that measures 6 inches, then it's area is 36 square inches. Note that without a unit of measurement (inches, or whatever it is) you do not have a meaningful answer.
The answer is 72, i think!
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.
If you are talking about 9 and 12 inch diameter, then divide both by 2 to get the radius. The area of a circle is pi (3.1415 is good for most calculations) multiplied by the square of the radius. So for the 12 inch circle, the radius is 6. The square of the radius is 36, and multiplying this by pi gives approximately 113.1 square inches. Now the 9 inch circle has a radius of 9/2 or 4.5. Squaring this we get 20.25, which multiplied by pi is approximately 63.6 square inches. If 9 and 12 were already the radius in the problem, just don't divide by 2 since you already have the radius.
area = pi x radius squared = 3629.84; pi = 3.14; radius = square root of (area/3.14) = 34 mies
754 square feet.
The surface area of a sphere with radius 6 is: 452 square units.
If its radius is 6, then the surface area of the sphere is: 4*pi*6*6 = 144*pi square units.
The area of a circle with a 6-mile radius is approximately 113 square miles.
A circle with a radius of 6 units has an area of 113.1 square units.
If the square touches the circle from the outside then its area is 6*6 = 36 square inches
Area of circle = PI * radius^2, so PI * 6^2 = 113.09733553 square feet.
The surface area of a cylinder that has a radius of 6 in and height of 8in is 527.8 square inches.
The surface area of a cylinder with a radius of 7 and a height of 6 is 571.77 square units.
oh wow, squares DO have radius'!& the answer IS 6(:
It's hard to say, because "radius" is not a term classically associated with the square. You'd have to define what you mean when you talk about the square's radius.
The answer is 72, i think!
No Radius in a SquareA radius is a feature of a circle, not a square. A square, whatever its area, does not have a radius.