Mastering Circle Area & Circumference Word Problems

A circular garden has a radius of 5 meters. What is the area of the garden? (Use the formula A = πr²)

• 25π square meters

• 15π square meters

• 20π square meters

• 30π square meters

Tags

CCSS.7.G.B.4

If the same garden has a fence around it, what is the circumference? (Use the formula C = 2πr)

• C = 4πr

• C = 2πr

• C = πr^2

• C = 2r

Tags

CCSS.7.G.B.4

A pizza has a diameter of 12 inches. What is the area of the pizza? (Use the formula A = πr²)

• 24π square inches

• 48π square inches

• 36π square inches

• 18π square inches

Tags

CCSS.7.G.B.4

If you want to put a border around the pizza, how long will the border be? (Use the formula C = πd)

• C = πr^2

• C = 2πr

• C = d/π

• C = πd

Tags

CCSS.7.G.B.4

A circular swimming pool has a radius of 10 feet. How much water can it hold if the depth is 4 feet? (Use the formula for volume V = A × h, where A is the area of the base)

• 1000 cubic feet

• 1256 cubic feet

• 1500 cubic feet

• 800 cubic feet

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

A circular track has a circumference of 400 meters. What is the radius of the track? (Use the formula C = 2πr)

• 63.66 meters

• 100 meters

• 80 meters

• 50 meters

Tags

CCSS.7.G.B.4

A round table has a diameter of 1.5 meters. What is the area of the tabletop? (Use the formula A = πr²)

• 0.50 square meters

• 3.14 square meters

• 2.25 square meters

• 1.77 square meters

Tags

CCSS.7.G.B.4

If you want to place a tablecloth that covers the entire tabletop, how much fabric do you need? (Use the area calculated previously)

• The amount of fabric required is the volume of the tabletop.

• The amount of fabric needed is equal to the area of the tabletop.

• The fabric needed is half the area of the tabletop.

• You need fabric equal to the perimeter of the tabletop.

A circular fountain has a radius of 3 meters. What is the circumference of the fountain? (Use the formula C = 2πr)

• 12 meters

• 9π meters

• 6π meters

• 3π meters

Tags

CCSS.7.G.B.4

If you want to create a circular flower bed with a radius of 2 meters, how much soil do you need to fill it? (Calculate the area using A = πr²)

• 10.24 square meters

• 15.70 square meters

• 12.56 square meters

• 8.00 square meters

Tags

CCSS.7.G.B.4