Area or Circumference of Circles

what is the circumference of this circle ?

• 3.14 cm 

• 37.68 cm

• 24 cm

• 68.4 cm

Tags

CCSS.7.G.B.4

What is the circumference?

• 50.24 cm

• 96 cm

Tags

CCSS.7.G.B.4

A circular swimming pool is 21 feet in diameter. How many feet around is the pool?

• 10.5 ft

• 42 ft

• 65.94 ft

• 131.95 ft

Tags

CCSS.7.G.B.4

The Jones family wants to enclose their circular garden with a fence. To the nearest foot, what is the minimum length of fencing they need to buy?

• 56.25 ft

• 246.2 ft

• 365.56 ft

• 392.5 ft

Tags

CCSS.7.G.B.4

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference (use 3.14 for pi)?

• 11.32 ft

• 12.25 ft

• 10.99 ft

• 8.75 ft

Tags

CCSS.7.G.B.4

What is the formula for area of a circle given the radius?

• A = πr

• A = 2πr

• A = πd

• A = πr²

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 62.59 cm²

• 113.1 cm²

• 19.81 cm²

• 28.26 cm²

Tags

CCSS.7.G.B.4

Find the area of the circle

Tags

CCSS.7.G.B.4

Find the area of the circle. Use 3.14 for pi.

• 803.84 cm²

• 25.12 cm²

• 50.24 cm²

• 200.96 cm²

Tags

CCSS.7.G.B.4

What is the area of this circle?

Tags

CCSS.7.G.B.4