Circles Unit Assessment

What is the diameter of a circle with a radius of 15 cm?

• 10 cm

• 30 cm

• 45 cm

• 60 cm

Calculate the area of a circle with a diameter of 14 cm. (Use π = 3.14)

• 153.86 cm^2

• 100.48 cm^2

• 50.24 cm^2

• 200.96 cm^2

Find the circumference of a circle with a radius of 9 cm. (Use π = 3.14)

• 56.52 cm

• 28.26 cm

• 18.84 cm

• 37.68 cm

Calculate the area of a circle with a radius of 10 cm. (Use π = 3.14)

• 314 cm^2

• 100 cm^2

• 200 cm^2

• 400 cm^2

What is the diameter of a circle with a radius of 20 cm?

• 40 cm

• 60 cm

• 80 cm

• 100 cm

Find the circumference of a circle with a diameter of 15 cm. (Use π = 3.14)

• 47.1 cm

• 30 cm

• 60 cm

• 75 cm

What is the circumference of a circle with a radius of 12 cm? (Use π = 3.14)

• 24 cm

• 75.36 cm

• 37.68 cm

• 50.24 cm

Calculate the area of a circle with a diameter of 16 cm. (Use π = 3.14)

• 200.96 cm^2

• 100.48 cm^2

• 50.24 cm^2

• 314 cm^2

If the diameter of a circle is 20 cm, what is the radius?

• 10 cm

• 20 cm

• 5 cm

• 15 cm

• 42.58 square mm

• 25.85 square mm

• 28.26 square mm

• 56.25 square mm