Circle Vocabulary and Circumference

Flashcard
•
Mathematics
•
7th - 10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the value of pi?
Back
Approximately 3.14, but it is an infinite decimal.
2.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
C = 2πr, where C is the circumference and r is the radius.
3.
FLASHCARD QUESTION
Front
If the radius of a circle is 5 inches, what is the circumference?
Back
31.4 inches (C = 2π(5)).
4.
FLASHCARD QUESTION
Front
What is the definition of circumference?
Back
The distance around the edge of a circle.
5.
FLASHCARD QUESTION
Front
How many digits are in pi?
Back
Infinite.
6.
FLASHCARD QUESTION
Front
What is the radius of a circle?
Back
The distance from the center of the circle to any point on its edge.
7.
FLASHCARD QUESTION
Front
If the diameter of a circle is 10 inches, what is the radius?
Back
5 inches (r = d/2).
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