What is the formula for the area of a circle?
Area of Circles and Composite Figures

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Area = πr², where r is the radius of the circle.
2.
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.
3.
FLASHCARD QUESTION
Front
What is the diameter of a circle?
Back
The diameter is twice the length of the radius and is the distance across the circle through its center.
4.
FLASHCARD QUESTION
Front
How do you find the area of a triangle?
Back
Area = 1/2 × base × height.
5.
FLASHCARD QUESTION
Front
What is a composite figure?
Back
A composite figure is a shape that is made up of two or more simple shapes.
6.
FLASHCARD QUESTION
Front
How do you find the area of a composite figure?
Back
Find the area of each simple shape and then add them together.
7.
FLASHCARD QUESTION
Front
What is the area of a circle with a radius of 3 cm?
Back
Area = π(3 cm)² = 28.27 cm² (approximately).
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