Circumference and area
12
A circle has a circumference of 12π. What is its diameter?
24
A circle has a circumference of 24π. What is its diameter?
12
A circle has a circumference of 24π. What is its radius?
100
A circle has a circumference of 314 units. What is its diameter? Use 3.14 for pi.
50.0
A circle has a circumference of 314 units. What is its radius to the nearest tenth?
20
A circle has a circumference of 40π. What is its radius?
6
A circle has a circumference of 6π. What is its diameter?
3
A circle has a circumference of 6π. What is its radius?
157.08
A circle has a diameter of 50 units. What is the circumference to the nearest hundredth?
314.2
A circle has a radius of 50 units. What is the circumference to the nearest tenth?
18.8
A toy train travels around a Christmas tree in a circle. The train track measures 6 feet in diameter. What is the distance (in feet) that the train travels to the nearest tenth?
25.13
A tree is sold based on the circumference of the tree. If a tree has a radius of 4 inches, then what is the circumference (in feet) of the tree to the nearest hundredth?
34.54
Find the circumference of a circle with a diameter of 11. Use 3.14 for pi
28π
Find the circumference of a circle with a diameter of 28 in. in terms of pi
18.85
Find the circumference of a circle with a radius of 3 miles to the nearest hundredth
8π
Find the circumference of a circle with a radius of 4 in terms of pi.
12.57
Green Reservoir is in the shape of a circle. If the distance across the reservoir is 4 miles, what is the circumference to the nearest hundredth?
pi
On ANY circle, the (Circumference ÷ Diameter) = ______
2
On ANY circle, the (Diameter ÷ Radius) = ______
5
The area is 25π. What is the radius of this circle?
14
The area of a circle is 49π. What is the diameter of the circle?
9
The area of a circle is 81π. What is the radius of the circle
78.5
The diameter is 10. What is the area of this circle? Use 3.14 for pi.
40.96π
The diameter is 12.8. What is the area of this circle in terms of pi?
176.625
The diameter is 15. What is the area of this circle? Use 3.14 for pi.
415.265
The diameter is 23. What is the area of this circle? Use 3.14 for pi.
55.4
The diameter is 8.4. What is the area of this circle? Round your answer to the nearest tenth.
circumference
The distance around a circle. Also known as the perimeter of a circle.
radius
The distance from the center of a circle to the edge of the circle. It is half of the diameter.
diameter
The distance from the edge of the circle, through the center, to the other edge. It is twice the radius.
diameter
The distance shown is called the ________.
radius
The distance shown is called the ________.
445
The radius is 11.9. What is the area of this circle? Round your answer to the nearest whole number.
4.41π
The radius is 2.1. What is the area of this circle in terms of pi?
7.29π
The radius is 2.7. What is the area of this circle in terms of pi?
50.2
The radius is 4. What is the area of this circle? Round your answer to the nearest tenth. Use 3.14 for pi.
105.7
The radius is 5.8. What is the area of this circle? Round your answer to the nearest tenth.
49π
The radius is 7. What is the area of this circle in terms of pi?
167.4
The radius is 7.3. What is the area of this circle? Round your answer to the nearest tenth.
81π
The radius is 9. What is the area of this circle in terms of pi?
