
Measuring Circles Test Review
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for the area of a circle?
Back
Area = πr², where r is the radius of the circle.
2.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
Circumference = 2πr or Circumference = πd, where r is the radius and d is the diameter.
3.
FLASHCARD QUESTION
Front
What does the term 'circumference' refer to in relation to a circle?
Back
Circumference is the distance around the circle.
4.
FLASHCARD QUESTION
Front
What does the term 'area' refer to in relation to a circle?
Back
Area is the amount of space inside the circle.
5.
FLASHCARD QUESTION
Front
If a circle has a radius of 3 units, what is its area?
Back
Area = π(3)² = 9π square units.
6.
FLASHCARD QUESTION
Front
If a circle has a diameter of 10 units, what is its circumference?
Back
Circumference = πd = π(10) = 10π units.
7.
FLASHCARD QUESTION
Front
How is the circumference of a circle related to its diameter?
Back
The circumference is always proportional to the diameter; specifically, C = πd.
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