Circumference and Area Word Problems

A pizza has a diameter of 50 centimeters. Which of the following is closest to the circumference of the pizza? Show your work.

• 157 cm

• 53.14 cm

• 150 cm

• 201.28 cm

Tags

CCSS.7.G.B.4

The diameter of a circular path is 30 meters. Using =3.14, find the approximate circumference of the path. Show your work.

• 33.14 m

• 150.72 m

• 94.2 m

• 63.14 m

Tags

CCSS.7.G.B.4

The radius of a circular rug is 3 feet. Which of the following is closest to the circumference of the rug? Show your work.

• 6.14 ft

• 18.84 ft

• 9.42 ft

• 51.96 ft

Tags

CCSS.7.G.B.4

The diameter of a hot chocolate mug is 4 inches. Which of the following describes how to calculate the circumference of the mug? Hint: Write the formula first.

• Multiply the diameter by π.

• Divide the diameter by 2 and multiply by π.

• Divide the diameter by 2, square the results, and multiply by π.

• Multiply the diameter by 2 π.

Tags

CCSS.7.G.B.4

Students in England created the world’s largest yo-yo. Its diameter is about 10 feet long! Which of these is closest to the area of the yo-yo? Show your work.

• 80.5 in²

• 87.5 in²

• 314 in²

• 78.5 in²

Tags

CCSS.7.G.B.4

Five Italian chefs came together to bake the world’s largest pizza. Its diameter is 131 feet long! Which of these is closest to the area of the pizza? Show your work.

• 13471 ft²

• 411 ft²

• 206 ft²

• 4290 ft²

Tags

CCSS.7.G.B.4

The largest cookie ever baked measured had a radius of 51 feet. Which of these is closest to the area of the cookie? Show your work.

• 2601 ft²

• 2601π ft²

• 2042 ft²

• 162π ft²

Tags

CCSS.7.G.B.4