Circle Fun: Area and Circumference Challenges for 6th Graders

A circular garden has a radius of 5 meters. What is the area of the garden?

• 15π square meters

• 25π square meters

• 30π square meters

• 20π square meters

Tags

CCSS.7.G.B.4

If the same garden has a fence around it, what is the circumference of the garden?

• The circumference is always 100 meters.

• Circumference depends on the shape and dimensions of the garden.

• Circumference is the same as area.

• The garden has no circumference if it's square.

A pizza has a diameter of 12 inches. Calculate the area of the pizza.

• 113.1 square inches

• 150.8 square inches

• 78.5 square inches

• 94.2 square inches

Tags

CCSS.7.G.B.4

If you want to put a border around the pizza, how long will the border need to be?

• C = π * r^2

• C = 4 * r

• C = 2 * π * d

• C = 2 * π * r

Tags

CCSS.7.G.B.4

A circular swimming pool has a radius of 10 feet. What is the area of the pool?

• 75π square feet

• 100π square feet

• 50π square feet

• 200 square feet

Tags

CCSS.7.G.B.4

How much fencing is needed to enclose the swimming pool?

• Fencing is not required if the pool is indoors.

• The amount of fencing needed is equal to the perimeter of the pool.

• You need to measure the depth of the pool for fencing.

• The fencing should be half the area of the pool.

A round table has a diameter of 4 feet. What is the area of the table?

• 12.57 square feet

• 10.24 square feet

• 15.70 square feet

• 8.00 square feet

Tags

CCSS.7.G.B.4

If you want to place a tablecloth around the table, how much fabric do you need for the circumference?

• C = 2 * d, where d is the diameter of the table.

• C = π * (d + 1), where d is the diameter of the table.

• C = π * d, where d is the diameter of the table.

• C = 2 * π * r, where r is the radius of the table.

Tags

CCSS.7.G.B.4

A bicycle wheel has a radius of 14 inches. Calculate the area of the wheel.

• 785 square inches

• 450 square inches

• 615.75 square inches

• 300 square inches

Tags

CCSS.7.G.B.4

If you ride the bicycle for one full rotation of the wheel, how far will you travel?

• Approximately 5 meters

• Approximately 1.5 meters

• Approximately 3.5 meters

• Approximately 2.2 meters

Tags

CCSS.4.MD.A.1