What is the radius of a circle?
Area and Circumference

Flashcard
•
Mathematics
•
6th - 8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The radius is the distance from the center of the circle to any point on its circumference.
2.
FLASHCARD QUESTION
Front
What is the diameter of a circle?
Back
The diameter is the distance across the circle through its center, equal to twice the radius.
3.
FLASHCARD QUESTION
Front
What is the circumference of a circle?
Back
The circumference is the distance around the circle.
4.
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.
5.
FLASHCARD QUESTION
Front
What is the formula for the area of a circle?
Back
A = πr², where A is the area and r is the radius.
6.
FLASHCARD QUESTION
Front
If the radius of a circle is 5 cm, what is the diameter?
Back
The diameter is 10 cm.
7.
FLASHCARD QUESTION
Front
If the diameter of a circle is 12 cm, what is the radius?
Back
The radius is 6 cm.
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