Area and Circumference of Circle

Find the circumference of the circle

• 21.98

• 153.86

• 43.96

• 615.44

The radius is 8 inches.  What is the circumference?

• 50.24 inches

• 25.12 inches

• 12.56 inches

• 200.96 inches

What is the circumference of a circle with a radius of 21 cm?

• 131.9 cm

• 121.9 cm

• 111.9 cm

• 141.9 cm

A Circle has a radius of 4.  What is the area of the circle? (Best Choice) (note: units are squared)

• 4π or about 12.56

• 16π or about 50.24

• 2π or about 6.28

• 8π or about 25.12

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

What is the perimeter (circumference) of this circle?

• 18.84ft

• 37.68ft

• 452.16ft

• 113.04ft

Find the circumference (to the nearest whole number)

• 88 in

• 44 in

• 116 square in

• None of the above

• 56.52

• 18

• 18.84

• 28.26 in

What is the area of this circle?

• 50.27

• 78.23

• 98.12

• 201.06

• 28.26 ft
• 28.26 ft²
• 9.42 ft²
• 18.84 ft²