Grade 7 | Unit 3 | Lesson 8: Relating Area to Circumference | Practice Problems

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CCSS.7.G.B.4

A circle’s circumference is approximately 76 cm. Estimate the radius, diameter, and area of the circle.

Tags

CCSS.7.G.B.4

Jada paints a circular table that has a diameter of 37 inches. What is the area of the table?

Tags

CCSS.7.G.B.4

The Carousel on the National Mall has 4 rings of horses. Kiran is riding on the inner ring, which has a radius of 9 feet. Mai is riding on the outer ring, which is 8 feet farther out from the center than the inner ring is. In one rotation of the carousel, how much farther does Mai travel than Kiran?

Tags

CCSS.HSG.SRT.C.8

The Carousel on the National Mall has 4 rings of horses. Kiran is riding on the inner ring, which has a radius of 9 feet. Mai is riding on the outer ring, which is 8 feet farther out from the center than the inner ring is. One rotation of the carousel takes 12 seconds. How much faster does Mai travel than Kiran?

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CCSS.HSG.C.B.5

Here are the diameters of four coins:

Coin	Diameter (cm)
Penny	1.9
Nickel	2.1
Dime	1.8
Quarter	2.4

A coin rolls a distance of 33 cm in 5 rotations. Which coin is it?

Tags

CCSS.4.MD.A.2

Here are the diameters of four coins:

Coin	Diameter (cm)
Penny	1.9
Nickel	2.1
Dime	1.8
Quarter	2.4

A quarter makes 8 rotations. How far did it roll?

Tags

CCSS.4.MD.A.2

Here are the diameters of four coins:

Coin	Diameter (cm)
Penny	1.9
Nickel	2.1
Dime	1.8
Quarter	2.4

A dime rolls 41.8 cm. How many rotations did it make?

Tags

CCSS.5.MD.A.1