Vocabulary
Radius/Diameter
Circumference 1.0
Circumference 2.0
Circumference 3.0
100
Name a shape that has no edges.
Circle
100
What is the radius if the diameter is 10 feet?
5 feet
100
What is the circumference of a circle if:
the Diameter = 4 in
12.6 in
100
What is the circumference of the circle? Use 3.14 for pi.
43.96 yd
200
Name the line that goes from one edge of a circle to another edge and passes through the center.
Diameter
200
What is the diameter if the radius is 12 inches
24 inches
200
What is the circumference of the circle. Use 3.14 for pi.
31.4 in
200
What is the circumference of a circle if:
the radius = 9 yds?
56.5 yds
200
Gene’s frying pan Is 14.5 inches in diameter. What is the circumference of his frying pan? Leave your answer in terms of π.
14.5pi
300
What do you call half of the Diameter?
Radius
300
A circle has a circumference of 25.12 inches. Find the diameter.
Use π=3.14.
8 inches
300
What is the circumference of the circle. Use 3.14 for π.
43.96 in
300
What is the circumference of the circle. Use 3.14 for pi.
52.8 feet
300
Trevor needs a new bicycle tire. His tire has a circumference of about 94.2 inches. What is the diameter of his tire? Use 3.14 for π
30 in
400
What word describes the perimeter of a circle?
Circumference
400
Find the radius of a circle with a circumference of
10pi
5
400
What is the circumference of a circle if:
the Diameter = 16 in
use π=3.14
50.24 in
400
What is the circumference of the circle. Leave your answer in terms of pi.
20pi
400
Brad is putting up a circular flower garden in his yard. He will put plastic edging along the flowerbed. How many feet of edging will Brad need to enclose his flower garden if it has a radius of 5 feet?
Use 3.14 for π.
31.4 feet
500
弦
chord
500
A circle has a circumference of 37.68 feet. What is the radius of the circle?
6 feet
500
What is the circumference of the circle. Leave your answer in terms of π.
23.4pi
500
What is the circumference of a circle if:
the radius = 11.8 yds?
74.1 yds
500
Macy measures a truck’s tire mark for one complete revolution as 125.6 inches long. What is the diameter of the tire? Use 3.14 for π
40 in