What is the area of a circle with a radius of 3 inches?

Using the formula $$A = \text{π} \times r^2$$ , the area is approximately $$A = 3.14 \times 3^2 = 28.26 \text{ in}^2$$ .

What is the area of a circle with a radius of 1.5 feet?

Using the formula $$A = \text{π} \times r^2$$ , the area is approximately $$A = 3.14 \times (1.5)^2 = 7.07 \text{ ft}^2$$ .

What is the area of a circle with a radius of 4 cm?

Using the formula $$A = \text{π} \times r^2$$ , the area is approximately $$A = 3.14 \times 4^2 = 50.24 \text{ cm}^2$$ .

What is the area of a circle with a radius of 2.5 m?

Using the formula $$A = \text{π} \times r^2$$ , the area is approximately $$A = 3.14 \times (2.5)^2 = 19.63 \text{ m}^2$$ .

What is the area of a circle with a radius of 6 inches?

Using the formula $$A = \text{π} \times r^2$$ , the area is approximately $$A = 3.14 \times 6^2 = 113.04 \text{ in}^2$$ .

What is the area of a circle with a radius of 8 cm?

Using the formula $$A = \text{π} \times r^2$$ , the area is approximately $$A = 3.14 \times 8^2 = 200.96 \text{ cm}^2$$ .

What is the area of a circle with a radius of 10 m?

Using the formula $$A = \text{π} \times r^2$$ , the area is approximately $$A = 3.14 \times 10^2 = 314 \text{ m}^2$$ .

Area of Circles Flashcards

Student preview

14 questions

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1.

FLASHCARD QUESTION

Front

What is the formula for the area of a circle?

Back

2.

FLASHCARD QUESTION

Front

What does π (pi) represent in the context of circles?

Back

π (pi) is a mathematical constant approximately equal to 3.14. It represents the ratio of the circumference of a circle to its diameter.

3.

FLASHCARD QUESTION

Front

If the radius of a circle is 7 cm, what is its area?

Back

4.

FLASHCARD QUESTION

Front

What is the relationship between the diameter and radius of a circle?

Back

5.

FLASHCARD QUESTION

Front

How do you calculate the area of a circle if you know the diameter?

Back

6.

FLASHCARD QUESTION

Front

What is the area of a circle with a diameter of 10 cm?

Back

7.

FLASHCARD QUESTION

Front

What is the area of a circle with a radius of 5 m?

Back

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