
Area of Circles
Flashcard
•
Mathematics, Special Education
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for finding the area of a circle?
Back
A = π·r²
2.
FLASHCARD QUESTION
Front
If you are given the diameter, how can you calculate the radius?
Back
Divide the diameter by 2
3.
FLASHCARD QUESTION
Front
What is the value of π (pi) approximately?
Back
3.14
4.
FLASHCARD QUESTION
Front
How do you find the diameter of a circle if you know the radius?
Back
Multiply the radius by 2
5.
FLASHCARD QUESTION
Front
What is the area of a circle with a radius of 7 cm? (Use π = 3.14)
Back
A = π·r² = 3.14·(7)² = 153.86 cm²
6.
FLASHCARD QUESTION
Front
What is the area of a circle with a diameter of 10 cm? (Use π = 3.14)
Back
A = π·r² = 3.14·(5)² = 78.5 cm²
7.
FLASHCARD QUESTION
Front
What is the relationship between the radius and diameter of a circle?
Back
The diameter is twice the radius.
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