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Example Questions
Example Question #51 : Radius
Give the circumference of a circle with the following diameter:
Possible Answers:
Correct answer:
Explanation:
The circumference of a circle is its diameter multiplied by , so, since the diameter is 100, the circumference is simply .
Example Question #1 : How To Find Circumference
Ashley has a square room in her apartment that measures 81 square feet. What is the circumference of the largest circular area rug that she can fit in the space?
Possible Answers:
Correct answer:
Explanation:
In order to solve this question, first calculate the length of each side of the room.
The length of each side of the room is also equal to the length of the diameter of the largest circular rug that can fit in the room. Since , the circumference is simply
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