
Area and Circumference of a Circle
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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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 a straight line that passes through the center of the circle and connects two points on its circumference. It is twice the length of the radius.
2.
FLASHCARD QUESTION
Front
If the radius of a circle is 8 cm, what is the diameter?
Back
16 cm
3.
FLASHCARD QUESTION
Front
What is the formula to find the diameter if the radius is known?
Back
Diameter = 2 × Radius
4.
FLASHCARD QUESTION
Front
If the diameter of a circle is 40 ft, what is the radius?
Back
20 ft
5.
FLASHCARD QUESTION
Front
What is the formula to find the radius if the diameter is known?
Back
Radius = Diameter / 2
6.
FLASHCARD QUESTION
Front
What is the area of a circle?
Back
The area of a circle is the space contained within its circumference, calculated using the formula: Area = π × Radius².
7.
FLASHCARD QUESTION
Front
If the radius of a circle is 10 ft, what is the area?
Back
Area = π × (10 ft)² = 314.16 ft² (approximately).
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