Area and Circumference of a Circle
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
Wayground Content
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11 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for the circumference of a circle?
Back
C = π * d (where C is circumference and d is diameter)
2.
FLASHCARD QUESTION
Front
What is the relationship between radius and diameter?
Back
Diameter is twice the radius. (d = 2 * r)
3.
FLASHCARD QUESTION
Front
If the radius of a circle is 8 inches, what is the circumference?
Back
50.24 inches
4.
FLASHCARD QUESTION
Front
If the diameter of a circle is 19 inches, what is the radius?
Back
9.5 inches
5.
FLASHCARD QUESTION
Front
What is the formula for the area of a circle?
Back
A = π * r² (where A is area and r is radius)
6.
FLASHCARD QUESTION
Front
If the radius of a circle is 5 inches, what is the area?
Back
78.5 inches²
7.
FLASHCARD QUESTION
Front
What is the value of π (pi) approximately?
Back
3.14
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