Circles & Semicircles - Area & Circumference

Find the area of a SEMICIRCLE with a radius of 3.3 feet.

17.1 square feet

If the circumference of a circle is 70 cm, what is the diameter?

22.3 cm

Find the area of a SEMICIRCLE with a radius of 15 feet.

353.4 square feet

What is the diameter of circle that has a radius of 21 cm?

42 cm

Find the area of a SEMICIRCLE with a radius of 220 feet.

76026.5 square feet

If the diameter of a circle is 10 cm, what is the area?

78.5 square centimeters

What do we call the part of the circle shown?

Radius

If the circumference of a circle is 44 inches, what is the diameter?

14 in.

Find the perimeter of a SEMICIRCLE with a radius of 90 feet.

462.7 ft

What is the radius of a circle that has a diameter of 10.8 cm?

5.4 cm

Find the perimeter of a SEMICIRCLE with a radius of 13 feet.

66.8 ft

What is the radius of a circle that has a diameter of 45 inches?

22.5 inches

If the diameter of a circle is 9 cm, what is the circumference?

28.3 cm

Find the circumference of a circle with a radius of 5 m.

31.4 m

If the circumference of a circle is 200 mm, what is the radius?

31.8 mm

What is the diameter of a circle that has a radius of 58.9 cm?

117.8 cm

If the circumference of a circle is 74.88 cm, what is the diameter?

12 cm

Find the perimeter of a SEMICIRCLE with a radius of 27 feet.

138.8 ft

Find the area of a SEMICIRCLE with a diameter of 66 feet.

1710.6 square feet

Find the area of a SEMICIRCLE with a radius of 67.2 feet.

1773.4 square feet

If the diameter of a circle is 5 cm, what is the area?

19.63 square centimeters

Find the area of a SEMICIRCLE with a radius of 35 feet.

1924.2 square feet

If the radius of a circle is 8 inches, what is the area?

201.1 square inches

Find the area of a SEMICIRCLE with a diameter of 24 feet.

226.2 square feet

If the radius of a circle is 4 cm, what is the circumference?

25.1 cm

Find the area of a SEMICIRCLE with a diameter of 9 feet.

31.8 square feet

Find the perimeter of a SEMICIRCLE with a radius of 63 feet.

323.9 ft.

Find the perimeter of a SEMICIRCLE with a diameter of 18 ft.

46.3 ft

If the radius of a circle is 4 inches, what is the area?

50.3 square inches

Find the area of a SEMICIRCLE with a diameter of 12 feet.

56.4 square feet

Find the circumference of a circle with a diameter of 18 inches.

56.5 inches

What is the diameter of a circle that has a radius of 3.2 cm?

6.4 cm

Find the perimeter of a SEMICIRCLE with a diameter of 24 m.

61.7 m

If the circumference of a circle is 200 mm, what is the diameter?

63.7 mm

The distance around a circle

Circumference

What do we call the part of the circle shown?

Diameter