Name ________________________________________ Date __________________ Class __________________
LESSON
9-1
Circumference
Practice and Problem Solving: A/B
Find the circumference of each circle. Use 3.14 or
22
for π . Round to
7
the nearest hundredth, if necessary.
1.
2.
________________________
4.
3.
_______________________
5.
________________________
7.
6.
_______________________
8.
________________________
________________________
________________________
9.
_______________________
________________________
Solve.
10. A circular swimming pool is 21 feet in diameter. What is the
22
circumference of the swimming pool? Use
for π .
7
_________________________________________________________________________________________
11. A jar lid has a diameter of 42 millimeters. What is the circumference of
22
the lid? Use
for π .
7
_________________________________________________________________________________________
12. A frying pan has a radius of 14 centimeters. What is the circumference
22
of the frying pan? Use
for π .
7
_________________________________________________________________________________________
Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility of the instructor.
189