Perimeter & Area of Circle

The perimeter of a circle is also known as the ______of the circle

• area

• arc

• circumference

• volume

Choose the correct formulas for the circumference of the circle.

• 3.142

• 110 cm

• 55 cm

• 100.9 cm

• 109.9

How do you find the area of a circle?

• length x width

• add up all the side lengths

What is the perimeter (circumference) of this circle?

• 18.84ft

• 37.68ft

• 452.16ft

• 113.04ft

What is the circumference of a circle with a radius of 54 m?

• 339.12 m
• 169.56 m
• 84.78 m 

Find the perimeter of the semicircular region. Round your answer to the nearest hundredth.

• 23.13 m

• 28.26 m

• 14.13 m

• 56.52 m

If a semicircle has a diameter of 12 m, what is the perimeter?

• 60.26 m

• 30.84 m

• 28.51 m

• 46.38 m

• 17.27 m