What is the formula for area of a circle?

What is the formula for circumference of a circle?

The diameter of a basketball is 12 inches. What is its circumference?

A coin has a radius of 2 cm. What is its area? (Use 3.14 for pi)

Captain America's shield has a radius of 1 yard. What is the circumference of his shield. (Use 3.14 for pi)

What is the area of a semicircle if its radius is 3 units?

Can a soccer ball with a radius of 6 inches be kicked into a trashcan with a circumference of 15π inches?

Which expression is used to determine the area of a circle?

The radius of a circle is 6. What is the circle's diameter?

If the radius is 6.25, what is the area rounded to the nearest whole number?

If the radius is 7 inches, what is the circumference of a circle?

What is the area of a circle that has a diameter of 10?

A circle has a diameter of 20. What is the area to the nearest tenth?

What is the circumference of a circle with a diameter of 18, to the nearest tenth?