7.3.4

Last updated over 1 year ago
24 questions
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1. Here is a picture of a Ferris wheel. It has a diameter of 80 meters.
a) On the picture use the line tool to draw a diameter and use a text box to label it 80 meters.

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1b. How far does a rider travel in one complete rotation around the Ferris wheel?

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What measurement did you find above?

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2. Identify each measurement as the diameter, radius, or circumference of the circular object.
a) The length of the minute hand on a clock is 5 in.

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2a. Now estimate the other two measurements for the circle.

The diameter is about _______ inches.
The circumference is about _______ inches.
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2. Identify each measurement as the diameter, radius, or circumference of the circular object.
b) The distance across a sink drain is 3.8 cm.

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2b. Now estimate the other two measurements for the circle.

The radius is _______ cm.
The Circumference is _______ cm.
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2. Identify each measurement as the diameter, radius, or circumference of the circular object.
c) The tires on a mining trucck are 14 ft tall.

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2c. Now estimate the other two measurements for the circle.

The radius is _______ feet.
The Circumference is _______ feet.
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2. Identify each measurement as the diameter, radius, or circumference of the circular object.
d) The fence around a circular pool is 75 feet long.

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2d. Now estimate the other two measurements for the circle.

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2. Identify each measurement as the diameter, radius, or circumference of the circular object.
e) The distance from the tip of a slice of pizza to the crust is 7 in.

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2e. Now estimate the other two measurements for the circle.

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2. Identify each measurement as the diameter, radius, or circumference of the circular object.
f) Breaking a cookie in half creates a straight side 10 cm long.

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2f. Now estimate the other two measurements for the circle.

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2. Identify each measurement as the diameter, radius, or circumference of the circular object.
g) The length of the metal rim around a glass lens is 190 mm.

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2g. Now estimate the other two measurements for the circle.

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2. Identify each measurement as the diameter, radius, or circumference of the circular object.
h) From the center to the edge of a DVD measures 60 mm.

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2h. Now estimate the other two measurements for the circle.

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3. A half circle is joined to an equilateral triangle with side lengths of 12 units. What is the perimeter of the resulting shape?

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4. Circle A has a diameter of 1 foot. Circle B has a circumference of 1 meter. Which circle is bigger?

Explain your reasoning in the space provided.
Hints:
1 in = 2.54 cm
1 foot = 12 in
100 cm = 1 m

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5. The circumference of Tyler's bike tire is 72 inches. What is the diameter of the tire?

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EXIT TICKET
Circle A has a diameter of 9 cm. Circle B has a radius of 5 cm.
1. Which circle has the larger circumference?
Hint:
*Show your work in the space provided below.

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Exit Ticket
2. About how many centimeters larger is it?