Circles Review!!

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

• 15.7 cm^2

• 78.5 cm^2

• 10.5 cm^2

• 25 cm^2

If the diameter of a circle is 12 cm, what is its circumference?

• 37.8 cm

• 9.42 cm

• 15.72 cm

• 24.56 cm

If the circumference of a circle is 31.4 cm, what is its diameter?

• 20 cm

• 15 cm

• 10 cm

• 25 cm

If the circumference of a circle is 25.12 cm, what is its radius?

• 3.0 cm

• 4.0 cm

• 6.28 cm

• 12.56 cm

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

• 14 cm

• 22 cm

• 44 cm

• 28 cm

If the diameter of a circle is 15 cm, what is its radius?

• 7.5 cm

• 30 cm

• 15 cm

• 3.75 cm

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

• 314 cm^2

• 100 cm^2

• 200 cm^2

• 400 cm^2

If the circumference of a circle is 62.8 cm, what is its radius?

• 10 cm

• 20 cm

• 30 cm

• 40 cm

If the radius of a circle is 6 cm, what is its circumference?

• 12 cm

• 37.68 cm

• 18.84 cm

• 24 cm

If the diameter of a circle is 14 cm, what is its area?

• 154 cm^2

• 77 cm^2

• 308 cm^2

• 616 cm^2