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- 1. Multiple Choice
What is circumference?
The distance around a circle.
The space inside the circle.
The length of the straight line segment that passes through the center of the circle and whose endpoints lie on the circle.
The line from the center of a circle to any point on its edge.
- 2. Multiple Choice
What is the area of a circle?
The distance around a circle.
The space inside the circle.
The length of the straight line segment that passes through the center of the circle and whose endpoints lie on the circle.
The line from the center of a circle to any point on its edge.
- 3. Multiple Choice
The formula for the circumference of a circle is...
- 4. Multiple Choice
The formula for finding the area of a circle is...
- 5. Multiple Choice
What is the diameter of this circle?
8cm
16cm
10cm
4cm
- 6. Multiple Choice
What is the radius of this circle?
18in
36in
9in
6in
- 7. Multiple ChoiceIs the red line a radius or diameter of the circle?RadiusDiameter
- 8. Multiple Choice
Find the circumference of the circle
87.82in
153.86in
43.96in
307.72in
- 9. Multiple Choice
Find the area of the circle
43.96 units2
153.86 units2
87.82 units2
307.72units2
- 10. Multiple Choice
What is the area of this circle?
452.39 cm2
139.12 cm2
113.1 cm2
84.23 cm2
- 11. Multiple ChoiceIf my diameter is 19 inches, what is my radius?38 inches9.5 inches59.66 inches119.32 inches
- 12. Multiple Choice
A jar lid has a diameter of 32 millimeters. What is the circumference of the lid to the nearest tenth?
100.5 mm
96.3 mm
115.6 mm
69.9 mm
- 13. Multiple Choice
The radius of Michael’s basketball rim is 8 inches. What is the circumference to the nearest hundredth?
25.12 in
50.27 in
12.56 in
48.15 in
- 14. Multiple Choice
The diameter of Joanne’s bicycle wheel is 18 inches. What is the circumference to the nearest tenth?
28.3 in
27 in
56.5 in
54 in
- 15. Multiple Choice
The circular fountain in front of the library has a radius of 8.8 feet. What is the circumference of the fountain to the nearest tenth?
55.3 ft
26.4 ft
48.8 ft
27.6 ft
- 16. Multiple Choice
If the word problem is asking you to find the space inside the circle, which formula should you use?
r = d/2
d = 2r
C = πd
A = πr²
- 17. Multiple ChoiceIf the problem ask you to find the distance around a circle, which formula should you use?r = d/2d = 2rC = πdA = πr²
- 18. Multiple Choice
Which formula would you use to answer: Lauren's bicycle tire has a diameter of 20 inches. How many inches is one full revolution of the wheel?
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