5. The circumference of Tyler's bike tire is 72 inches. What is the diameter of the tire?
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.
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
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.
Exit Ticket
2. About how many centimeters larger is it?
1b. How far does a rider travel in one complete rotation around the Ferris wheel?
What measurement did you find above?
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.
2a. Now estimate the other two measurements for the circle.
The diameter is about
The circumference is about
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.
2b. Now estimate the other two measurements for the circle.
The radius is
The Circumference is
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.
2c. Now estimate the other two measurements for the circle.
The radius is
The Circumference is
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.
2d. Now estimate the other two measurements for the circle.
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.
2e. Now estimate the other two measurements for the circle.
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.
2f. Now estimate the other two measurements for the circle.
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.
2g. Now estimate the other two measurements for the circle.
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.
2h. Now estimate the other two measurements for the circle.
3. A half circle is joined to an equilateral triangle with side lengths of 12 units. What is the perimeter of the resulting shape?