Circles - Circumference and Area

A circular swimming pool is 21 feet in diameter.

About how many feet around is the pool?

• 11 ft

• 42 ft

• 66 ft

• 132 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?

• 196 ft

• 246 ft

• 392 ft

• 393 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)?

• 21.98 ft

• 12.25 ft

• 10.99 ft

• 38.47 ft²

Tags

CCSS.7.G.B.4

Randy’s circular garden has a radius of 1.5 feet. He wants to enclose the garden edging that costs $0.75 per foot. About how much will the edging cost?

• $5.30

• $7.00

• $3.50

• $0.50

Tags

CCSS.7.G.B.4

Mrs. Apple just bought a new dinning room table. She needs to make a table cloth for decoration. What amount of fabric should she buy if the table has a diameter of 5 feet? Choose the equation that would best help solve this problem.

• C = π5
• C = (2)(π)(2.5)
• A = π5²
• A = π2.5²

Tags

CCSS.7.G.B.4

Your Geometry teacher rents a fast car for the weekend. Her friend, a Physics teacher, uses a stopwatch to time how long it takes your teacher to make one complete revolution about the track. Is this question circumference or area?

• Circumference
• Area

Tags

CCSS.7.G.B.4

 A glass stained window is shaped like a semicircle. The bottom edge of the window is 36 inches long. How much colored glass would you need to cover the stained window? Round to the nearest hundredth.

• 1017.36 in²
• 508.68 in²
• 56.52 in
• 113.04 in

Tags

CCSS.7.G.B.4

Mark's dog, Meg, swam from one side of his circular pool to the other side going through the center. If the circumference of Mark's pool is 25.12 ft, then how many feet did Meg swim to get across the pool?

• 4 feet

• 8 feet

• 10 feet

• About 79 feet

Tags

CCSS.7.G.B.4

Serena drew a circle with a circumference of 157 centimeters.  What is the approximate diameter of the circle she drew?

• 1.57 cm
• 15.7 cm
• 50 cm
• 25 cm

Tags

CCSS.7.G.B.4

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?

• 113.04 m²

• 18.84 m²

• 9.42 m²

• 28.26 m²

Tags

CCSS.7.G.B.4