Flashcard Review: Circumference of Circles

Flashcard
•
Mathematics
•
7th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Circumference of a Circle?
Back
The Circumference of a Circle is the distance around the circle. It can be calculated using the formula C = 2πr, where r is the radius.
Tags
CCSS.7.G.B.4
2.
FLASHCARD QUESTION
Front
What is the formula to calculate the Circumference of a Circle?
Back
C = 2πr or C = πd, where r is the radius and d is the diameter.
Tags
CCSS.7.G.B.4
3.
FLASHCARD QUESTION
Front
If the radius of a circle is 12 inches, what is the Circumference?
Back
C = 2π(12) ≈ 75.36 inches.
Tags
CCSS.7.G.B.4
4.
FLASHCARD QUESTION
Front
What does 'π' represent in the context of circles?
Back
π (pi) is a mathematical constant approximately equal to 3.14, representing the ratio of the circumference of a circle to its diameter.
Tags
CCSS.HSG.GMD.A.1
5.
FLASHCARD QUESTION
Front
What is the Circumference of a Circle with a diameter of 10 feet?
Back
C = πd = π(10) ≈ 31.4 feet.
Tags
CCSS.7.G.B.4
6.
FLASHCARD QUESTION
Front
How do you find the diameter of a circle if you know the Circumference?
Back
You can find the diameter using the formula d = C/π.
Tags
CCSS.7.G.B.4
7.
FLASHCARD QUESTION
Front
What is the Circumference of a Circle with a radius of 7 yards?
Back
C = 2π(7) ≈ 43.96 yards.
Tags
CCSS.7.G.B.4
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