Area of Circles

Area of Circles

Assessment

Flashcard

Mathematics

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the formula for the area of a circle?

Back

Area = π × r², where r is the radius.

2.

FLASHCARD QUESTION

Front

What does the radius of a circle represent?

Back

The radius is the distance from the center of the circle to any point on its circumference.

3.

FLASHCARD QUESTION

Front

If the radius of a circle is 6, what is its area?

Back

Area = π × 6² = 113.1 (approximately).

4.

FLASHCARD QUESTION

Front

What is the value of π (pi) approximately?

Back

π (pi) is approximately 3.14.

5.

FLASHCARD QUESTION

Front

How do you find the diameter of a circle if you know the radius?

Back

Diameter = 2 × radius.

6.

FLASHCARD QUESTION

Front

If the diameter of a circle is 12, what is the radius?

Back

Radius = Diameter / 2 = 12 / 2 = 6.

7.

FLASHCARD QUESTION

Front

What is the area of a circle with a radius of 12?

Back

Area = π × 12² = 452.39 (approximately).

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