Circumference and Area
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
Standards-aligned
Wayground Content
FREE Resource
Student preview
15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for 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
2.
FLASHCARD QUESTION
Front
What is the formula for the area of a circle?
Back
A = πr², where r is the radius.
Tags
CCSS.7.G.B.4
3.
FLASHCARD QUESTION
Front
What does π (pi) represent?
Back
π 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
4.
FLASHCARD QUESTION
Front
If the radius of a circle is 7 cm, what is its circumference?
Back
C = 2π(7) ≈ 43.96 cm.
Tags
CCSS.7.G.B.4
5.
FLASHCARD QUESTION
Front
If the diameter of a circle is 10 cm, what is its area?
Back
A = π(5)² ≈ 78.54 cm².
Tags
CCSS.7.G.B.4
6.
FLASHCARD QUESTION
Front
What is the relationship between diameter and radius?
Back
The diameter is twice the length of the radius (d = 2r).
Tags
CCSS.7.G.B.4
7.
FLASHCARD QUESTION
Front
What is the circumference of a circle with a diameter of 14 cm?
Back
C = π(14) ≈ 43.98 cm.
Tags
CCSS.7.G.B.4
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