Open Up - Grade 7 - Mathematics - Unit 3 - Lesson 4

Here is a picture of a Ferris wheel. It has a diameter of 80 meters. Using your answer from question 1 how far does a rider travel in one complete rotation around the Ferris wheel?(Round to the nearest whole number)

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Identify each measurement as the diameter, radius, or circumference of the circular object. Then, estimate the other two measurements for the circle.The length of the minute hand on a clock is 5 in.

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Identify each measurement as the diameter, radius, or circumference of the circular object. Then, estimate the other two measurements for the circle.The distance across a sink drain is 3.8 cm.

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Identify each measurement as the diameter, radius, or circumference of the circular object. Then, estimate the other two measurements for the circle.The tires on a mining truck are 14 ft tall.

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Identify each measurement as the diameter, radius, or circumference of the circular object. Then, estimate the other two measurements for the circle.The fence around a circular pool is 75 ft long.

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Identify each measurement as the diameter, radius, or circumference of the circular object. Then, estimate the other two measurements for the circle.The distance from the tip of a slice of pizza to the crust is 7 in.

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Identify each measurement as the diameter, radius, or circumference of the circular object. Then, estimate the other two measurements for the circle.Breaking a cookie in half creates a straight side 10 cm long.

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Identify each measurement as the diameter, radius, or circumference of the circular object. Then, estimate the other two measurements for the circle.The length of the metal rim around a glass lens is 190 mm.

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Identify each measurement as the diameter, radius, or circumference of the circular object. Then, estimate the other two measurements for the circle.From the center to the edge of a DVD measures 60 mm.

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A half circle is joined to an equilateral triangle with side lengths of 12 units. What is the perimeter of the resulting shape? (Round to the nearest hundreth)

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