CIRCLES REVIEW!
Flashcard
•
Mathematics
•
5th - 8th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the diameter of a circle?
Back
The diameter is the distance across a circle through its center, equal to twice the radius.
2.
FLASHCARD QUESTION
Front
How do you calculate the circumference of a circle?
Back
Circumference = π × diameter. For a circle with a diameter of 24 inches, Circumference = 3.14 × 24 = 75.36 inches.
3.
FLASHCARD QUESTION
Front
What is the formula for the area of a circle?
Back
Area = π × radius².
4.
FLASHCARD QUESTION
Front
If a circle has a radius of 4.5 feet, what is its area?
Back
Area = 3.14 × (4.5)² = 63.585 ft².
5.
FLASHCARD QUESTION
Front
What is the value of π (pi) used in calculations?
Back
π (pi) is approximately 3.14.
6.
FLASHCARD QUESTION
Front
What is the radius of a circle?
Back
The radius is the distance from the center of the circle to any point on its circumference.
7.
FLASHCARD QUESTION
Front
If a circle has a diameter of 10 inches, what is its radius?
Back
Radius = diameter ÷ 2. So, radius = 10 ÷ 2 = 5 inches.
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