5b. A quarter makes 8 rotations. How far did it roll?
1
1
1
1
Question 1
1.
1. The picture shows a circle divided into 8 equal wedges which are rearranged.
The radius of the circle is r and its circumference is 2πr. How does the picture help to explain why the area of the circle is πr^2?
Use the text box to explain your reasoning.
Question 2
2.
Draggable item
arrow_right_alt
Corresponding Item
arrow_right_alt
arrow_right_alt
Question 3
3.
2. Estimate the area of the circle.
Question 4
4.
3. Jada paints a circular table that has a diameter of 37 inches. What is the area of the table?
Question 5
5.
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.
a) In one rotation of the carousel, how much farther does Mai travel than Kiran?
Question 6
6.
4b. One rotation of the carousel takes 12 seconds. How much faster does Mai travel than Kiran?
Question 7
7.
Question 9
9.
5c. A dime rolls 41.8 cm. How many rotations did it make?
Question 10
10.
Question 11
11.
Question 12
12.
2. A circle's circumference is approximately 76 cm. Estimate the radius and diameter of the circle.
Diameter
About 12 cm
Radius
About 24 cm
5a. A coin rolls a distance of 33 cm in 5 rotations. Which coin is it?
Quarter
Dime
Nickel
Penny
EXIT TICKET
A circle's circumference is approximately 44 cm.
1. The circle's diameter is approximately _______ cm.
7
11
14
22
88
138
154
196
380
616
EXIT TICKET
A circle's circumference is approximately 44 cm.
2. The circle's radius is approximately _______ cm.
7
11
14
22
88
138
154
196
380
616
EXIT TICKET
A circle's circumference is approximately 44 cm.
3. The circle's area is approximately _______ sq cm.
