Circles: Area & Circumference

Flashcard
•
Mathematics
•
7th - 8th Grade
•
Hard
Standards-aligned
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14 questions
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1.
FLASHCARD QUESTION
Front
What is the formula to find the circumference of a circle?
Back
C = 2πr or C = πd
Tags
CCSS.7.G.B.4
2.
FLASHCARD QUESTION
Front
What is the formula to find the area of a circle?
Back
A = πr²
Tags
CCSS.7.G.B.4
3.
FLASHCARD QUESTION
Front
What does circumference mean?
Back
The distance around a circle.
4.
FLASHCARD QUESTION
Front
What does area mean?
Back
The amount of space inside a shape.
5.
FLASHCARD QUESTION
Front
If the radius of a circle is 5 meters, what is the circumference?
Back
31.42 meters (C = 2πr = 2π(5))
Tags
CCSS.7.G.B.4
6.
FLASHCARD QUESTION
Front
If the diameter of a circle is 10 meters, what is the radius?
Back
5 meters (Radius is half of the diameter.)
Tags
CCSS.7.G.B.4
7.
FLASHCARD QUESTION
Front
What is the diameter of a circle?
Back
The distance across the circle through the center.
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