What is the formula for the area of a circle?
Area of Circles, Parallelograms, Triangles & Trapezoids Flashcard

Flashcard
•
Mathematics
•
7th Grade
•
Easy
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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 formula for the area of a parallelogram?
Back
Area = base × height.
3.
FLASHCARD QUESTION
Front
What is the formula for the area of a triangle?
Back
Area = 1/2 × base × height.
4.
FLASHCARD QUESTION
Front
What is the formula for the area of a trapezoid?
Back
Area = 1/2 × (base1 + base2) × height.
5.
FLASHCARD QUESTION
Front
What does 'area' mean in geometry?
Back
The amount of space inside a shape.
6.
FLASHCARD QUESTION
Front
If a circle has a radius of 3 cm, what is its area?
Back
Area = π(3)² = 28.27 cm² (approximately).
7.
FLASHCARD QUESTION
Front
A parallelogram has a base of 10 cm and a height of 5 cm. What is its area?
Back
Area = 10 cm × 5 cm = 50 cm².
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