Area of Circle and Circumference

Ray wants to build a fence around his circular garden outside. The garden has a radius of 6 ft. How many feet of fencing does he need?

• 37.68 ft

• 18.84 ft

• 113.04 ft

• 452.16 ft

Trevor is making a tablecloth for a circular table with a diameter of 40 inches. How many inches of tablecloth does he need? 

• 125.6 in²

• 251.2 in²

• 1256 ft²

• 1256 in²

Other than the formula C=πd what is another formula for circumference of a circle?

• C=2π

• C=2πr

• C=πr²

• C=πd²

What formula is this used for:
πd

• Area

• Circumference 

• Surface Area

• Volume 

What formula is used to find the space
"inside" a flat object?

• Circumference 

• Surface Area

• Area

• Volume

Which best represents the circumference of a circle with a radius of 12 inches?

• 37.68 inches

• 75.36 inches

• 62.14 inches

• 27.14 inches

The most popular size pizza at Pizza Parlor is a large pizza with a 12-inch radius. Which of the following best represents the circumference of this pizza?

• 62.84 inches

• 60 inches

• 75.36 inches

• 452.16 inches

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?

• 31.25 m²

• 29.55 m²

• 30.36 m²

• 28.26 m²

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference?

• 11.32 ft

• 12.25 ft

• 10.99 ft

• 8.75 ft

What is the area of this circle?

• 163.24 cm²

• 15.32 cm²

• 124.24 cm²

• 113.04 cm²