A pizzeria measures its pizzas by their diameters when listing sizes on the menu. What is the difference, in square inches, in surface area between a 10-inch pizza and an 8-inch pizza from that pizzeria (assume that each pizza has a negligible height/thickness)?

In the circle above, centered on point O, angle AOB measures 40 degrees. If line segment BD measures 18 inches, what is the measure, in inches, of minor arc BC?

A pizzeria measures its pizzas by their diameters when listing sizes on the menu. What is the difference, in square inches, in surface area between a 10-inch pizza and an 8-inch pizza from that pizzeria (assume that each pizza has a negligible height/thickness)?

In the circle above, centered on point O, angle AOB measures 40 degrees. If line segment BD measures 18 inches, what is the measure, in inches, of minor arc BC?

Rectangle ABCD is inscribed in a circle with center X. If the area of the rectangle is eight times its width, and the distance from X to side AB is three, what is the approximate circumference of the circle?

What is the area of the largest circular rug that will exactly fit in a square room with an area of 144 square feet?

What is the area of the largest circular rug that will exactly fit in a square room with an area of 144 square feet?

On a certain circular dartboard, the diameter of the circular bullseye is 4 inches and the diameter of the entire board is 20 inches. If a dart hits the board in a random location, what is the probability that it hits the bullseye target?

On a certain circular dartboard, the diameter of the circular bullseye is 4 inches and the diameter of the entire board is 20 inches. If a dart hits the board in a random location, what is the probability that it hits the bullseye target?

Rectangle ABCD is inscribed in a circle with center X. If the area of the rectangle is eight times its width, and the distance from X to side AB is three, what is the approximate circumference of the circle?