Find the length of the diameter given the radius is 5.

Find the length of the diameter given the radius is 5.

Two legs of a right triangle measure 3 and 4, respectively. What is the area of the circle that circumscribes the triangle?

Two legs of a right triangle measure 3 and 4, respectively. What is the area of the circle that circumscribes the triangle?

The area of a circle is . Find the diameter.

The perimeter of a circle is 36 π. What is the diameter of the circle?

The area of a circle is . Find the diameter.

The perimeter of a circle is 36 π. What is the diameter of the circle?

If the area of the circle touching the square in the picture above is , what is the closest value to the area of the square?

If the area of the circle touching the square in the picture above is , what is the closest value to the area of the square?