Unit 7: Filling and Wrapping
Name ____________________________________
Hwk #7: Going Around in Circles (Inv. 3.1)
For exercises 1-4, identify the part of the circle that is bolded. Your choices are circumference, diameter
or radius. Then measure that part in centimeters.
1. part _________________________ measurement _________________
2. part _________________________ measurement _________________
3. part _________________________ measurement _________________
4. part _________________________ measurement _________________
Filling and Wrapping
Homework #7
5.
Estimate the missing information on the
chart to the right..
Circle
Diameter
A
10 cm
B
14 cm
Circumference
C
21cm
D
15 cm
Using the circle to the right. Draw three different diameters.
6. What is the measure in centimeter of each diameter?
a. diameter #1’s measure _____________________
b. diameter #2’s measure _____________________
c. diameter #3’s measure _____________________
7. What can you say about the measurements you found?
Now draw three different radii (RAY dee eye, the plural for radius) on the circle above.
8. What is the measure in centimeters of each radius you drew.
a. radius #1’s measure _____________________
b. radius #2’s measure _____________________
c. radius #3’s measure _____________________
9. What can you say about the measurements you found?
Filling and Wrapping
Homework #7