Grade 7 | Unit 3: Measuring Circles | End-of-Unit Assessment (A)

A circle has radius 50 cm. Which of these is closest to its area?

• 157 cm²

• 314 cm²

• 7,854 cm²

• 15,708 cm²

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7.G.B.4

The shape is composed of three squares and two semicircles. Select all the expressions that correctly calculate the perimeter of the shape.

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7.G.B.4

Select all of the true statements.

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7.G.B.4

7.RP.A.2.b

Does there appear to be a proportional relationship between the radius and circumference of a circle? Explain or show your reasoning. Why might the measured radii and circumferences not be exactly proportional?

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7.G.B.4

For each quantity, decide whether circumference or area would be needed to calculate it. Explain or show your reasoning. The distance around a circular track. The total number of equally-sized tiles on a circular floor. The amount of oil it takes to cover the bottom of a frying pan. The distance your car will go with one turn of the wheels.

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7.G.B.4

This figure is made from a part of a square and a part of a circle. What is the perimeter of this figure, to the nearest unit?

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7.G.B.4

This figure is made from a part of a square and a part of a circle. What is the area of this figure, to the nearest square unit?

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7.G.B.4

A groundskeeper needs grass seed to cover a circular field, 290 feet in diameter. A store sells 50-pound bags of grass seed. One pound of grass seed covers about 400 square feet of field. What is the smallest number of bags the groundskeeper must buy to cover the circular field? Explain or show your reasoning.

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7.G.B.4

7.RP.A.2

7.RP.A.3