Area and Circumference of a Circle Quiz

Emma, Aria, and Mason are planning to build a circular garden in their backyard. They need to calculate the area of the garden to know how much soil they need. What is the formula they should use to calculate the area of their circular garden?

• πr^3

• πr^2

• πr

• 2πr

Tags

CCSS.7.G.B.4

Grace, Aria, and Samuel are planning a race around a circular track. If the track has a radius of 5 cm, what would be the total distance they would have to run to complete one full lap around the track? (Use π = 3.14)

• 10 cm

• 15.7 cm

• 25 cm

• 31.4 cm

Tags

CCSS.7.G.B.4

Nora, Hannah, and Zoe are in a math class. Their teacher asks them to calculate the circumference and area of a pizza they are planning to order for a party. Which value of π (pi) should they use for their calculations?

• 2.71828

• 3.14159

• 1.61803

• 4.66920

Tags

CCSS.HSG.GMD.A.1

Isla is making a circular garden in her backyard. If the diameter of the garden is 12 cm, what would be the circumference of the garden? (Use π = 3.14)

• 9.42 cm

• 37.68 cm

• 24.56 cm

• 15.72 cm

Tags

CCSS.7.G.B.4

Abigail, Michael, and Benjamin are planning to build a circular garden. They need to know the length of the fence they need to enclose the garden. If 'r' is the radius of the garden, which formula should they use to calculate the circumference of the garden?

• 2 * π * r^2

• π * r^2

• 2 * π * r + r

• 2 * π * r

Tags

CCSS.7.G.B.4

Olivia, Grace, and Anika are working on a project in their math class. They are asked to find the area of a circular garden with a radius of 8 cm. They know that they should use π = 3.14. What is the area of the garden?

• 16.28 cm^2

• 200.96 cm^2

• 64 cm^2

• 50.24 cm^2

Tags

CCSS.7.G.B.4

Mason is making a model of the solar system. If the radius of his model sun is 5cm, what would be the diameter of his model sun?

• The diameter is half the length of the radius.

• The diameter and radius are equal.

• The diameter is twice the length of the radius.

• The diameter is three times the length of the radius.

Tags

CCSS.7.G.B.4

Nora is participating in a science fair where she has to create a model of a planet. She decides to make a circular model with a circumference of 31.4 cm. If she uses π = 3.14, what would be the radius of her model planet?

• 5 cm

• 20 cm

• 10 cm

• 15 cm

Tags

CCSS.7.G.B.4

Liam is planning to build a circular garden in his backyard. He knows the radius of the garden. Can you help Liam to find the area of his circular garden?

• A = 2πr

• A = πr^2

• A = 2r^2

• A = πr

Tags

CCSS.7.G.B.4

Abigail, Grace, and Evelyn are working on a project in their math class. They are given a circular garden with an area of 78.5 cm² to design. If they use π = 3.14, what would be the radius of the garden?

• 10 cm

• 3 cm

• 5 cm

• 7 cm

Tags

CCSS.7.G.B.4