What is the definition of radius?
Circumference & Area of Circles & Semi-Circles
Flashcard
•
Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The distance from the center to any point on the circle.
2.
FLASHCARD QUESTION
Front
What is the formula for finding diameter?
Back
d = 2r
3.
FLASHCARD QUESTION
Front
What is the formula for finding the area of a circle?
Back
A = πr²
4.
FLASHCARD QUESTION
Front
What is the formula for finding the circumference of a circle?
Back
C = 2πr
5.
FLASHCARD QUESTION
Front
What is the area of a semi-circle?
Back
A = (1/2)πr²
6.
FLASHCARD QUESTION
Front
If the radius of a circle is 4 cm, what is the diameter?
Back
8 cm
7.
FLASHCARD QUESTION
Front
If the radius of a circle is 5 cm, what is the area?
Back
25π cm²
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