Vocabulary
Name a shape that has no edges.
Circle
What is the circumference of a circle if:
the radius = 7 yds?
43.96
What is the circumference of a circle if:
the Diameter = 4 in
12.6 in
Trevor needs a new bicycle tire. His tire has a circumference of about 112 inches. What is the diameter of his tire? (round to the nearest tenth place)
35.66 in
Write each ratio as a fraction in simplest form.
78:780
1:10
Name the line in a circle that cuts it in half.
Diameter
What is the circumference of a circle if:
the radius = 9 yds?
56.5 yds
What is the circumference of a circle if:
the Diameter = 10 in
31.4 in
Gene’s frying pan Is 14.5 inches in diameter. What is the circumference of his frying pan? (round to the nearest tenth place)
45.5 in
The ratio of wins lo losses for a team with 60 wins and 90 losses.
2:3
What do you call half of the Diameter?
Radius
What is the circumference of a circle if:
the radius = 8.4 yds?
52.8 yds
What is the circumference of a circle if:
the Diameter = 14 in
44 in
Brad is putting up a 10 foot diameter 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? (round to the nearest tenth place)
31.4
The ratio of girls to boys in a 7th grade class with 300 girls and 250 boys. (Simplest Form)
6/5
The outside measurement of a circle. (Hint similar to Perimeter)
Circumference
What is the circumference of a circle if:
the radius = 7.4 yds?
46.5 yds
What is the circumference of a circle if:
the Diameter = 16.8 in
52.8 in
Macy measures a truck’s tire mark for one complete revolution as 120.48 inches long. What is the diameter of the tire? (round to the nearest tenth place)
38.4 in
The ratio of red to blue for a purple paint made by mixing 24 oz of red with 28 oz of blue. (Simplest Form)
6/7
The measurement of the inside of a circle
Area
What is the circumference of a circle if:
the radius = 11.8 yds?
74.1 yds
What is the circumference of a circle if:
the Diameter = 23.4 in
73.5 in
S The circular fountain in front of the courthouse has a radius of 9.4 feet. What is the circumference of the fountain? Round to the nearest tenth.
59 ft
The ratio of blue to red for a purple paint made by mixing 24 oz of red with 28 oz of blue. (Simplify)
7/6