Area and Circumference Quiz

What is the formula for the circumference of a circle?

• C = 2πr

• C = πr^2

• C = πd

• C = 2πd

Tags

CCSS.7.G.B.4

What is the formula for the area of a circle?

• A = πr^2

• A = 2πr

• A = πd

• A = 2πd

Tags

CCSS.7.G.B.4

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

• C = 10π cm

• C = 25π cm

• C = 50π cm

• C = 100π cm

Tags

CCSS.7.G.B.4

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

• C = 6π cm

• C = 12π cm

• C = 24π cm

• C = 36π cm

Tags

CCSS.7.G.B.4

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

• A = 16π cm^2

• A = 32π cm^2

• A = 64π cm^2

• A = 128π cm^2

Tags

CCSS.7.G.B.4

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

• A = 25π cm^2

• A = 50π cm^2

• A = 100π cm^2

• A = 200π cm^2

Tags

CCSS.7.G.B.4

What is the circumference of a circle with a radius of 3.5 cm?

• C = 7π cm

• C = 10.5π cm

• C = 14π cm

• C = 21π cm

Tags

CCSS.7.G.B.4

What is the area of a circle with a radius of 6.2 cm?

• A = 12.4π cm^2

• A = 24.8π cm^2

• A = 38.48π cm^2

• A = 72.16π cm^2

Tags

CCSS.7.G.B.4

If the circumference of a circle is 18π cm, what is its radius?

• r = 3 cm

• r = 6 cm

• r = 9 cm

• r = 12 cm

Tags

CCSS.7.G.B.4

If the area of a circle is 49π cm^2, what is its radius?

• r = 7 cm

• r = 14 cm

• r = 21 cm

• r = 28 cm

Tags

CCSS.7.G.B.4