Circumference
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for calculating the circumference of a circle?
Back
Circumference = 2 × π × radius or Circumference = π × diameter.
2.
FLASHCARD QUESTION
Front
What is the value of π (pi) approximately?
Back
π is approximately 3.14.
3.
FLASHCARD QUESTION
Front
If the radius of a circle is 7 cm, what is the circumference?
Back
Circumference = 2 × π × 7 cm ≈ 43.96 cm.
4.
FLASHCARD QUESTION
Front
What is the relationship between diameter and radius?
Back
Diameter = 2 × radius.
5.
FLASHCARD QUESTION
Front
What is the diameter of a circle with a radius of 5 cm?
Back
Diameter = 2 × 5 cm = 10 cm.
6.
FLASHCARD QUESTION
Front
What is the radius of a circle with a circumference of 31.4 cm?
Back
Radius = Circumference / (2 × π) ≈ 5 cm.
7.
FLASHCARD QUESTION
Front
True or False: The diameter is the distance from the center to any point on a circle.
Back
False. The diameter is the distance across the circle through the center.
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