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

$$Area = \pi \left(\frac{10}{2}\right)^2 = 25\pi \text{ cm}^2$$ .

What is the area of a square with a side length of 4 inches?

$$Area = 4^2 = 16 \text{ square inches}$$ .

What is the area of a rectangle with a length of 12 ft and a width of 3 ft?

$$Area = 12 \cdot 3 = 36 \text{ ft}^2$$ .

What is the area of a triangle with a base of 10 cm and a height of 6 cm?

$$Area = \frac{1}{2} \cdot 10 \cdot 6 = 30 \text{ cm}^2$$ .

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

$$Area = \pi (3^2) = 9\pi \text{ m}^2$$ .

What is the area of a rectangle with a length of 15 m and a width of 4 m?

$$Area = 15 \cdot 4 = 60 \text{ m}^2$$ .

What is the area of a square with a side length of 5 cm?

$$Area = 5^2 = 25 \text{ cm}^2$$ .

What is the area of a triangle with a base of 7 m and a height of 4 m?

$$Area = \frac{1}{2} \cdot 7 \cdot 4 = 14 \text{ m}^2$$ .

Math3 M8L3 Warmup Area of 2D Shapes Flashcards

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the formula for the area of a rectangle?

Back

2.

FLASHCARD QUESTION

Front

What is the formula for the area of a triangle?

Back

3.

FLASHCARD QUESTION

Front

What is the formula for the area of a circle?

Back

4.

FLASHCARD QUESTION

Front

What is the area of a square with a side length of 6 feet?

Back

5.

FLASHCARD QUESTION

Front

If the radius of a circle is 2 cm, what is the area in terms of π?

Back

6.

FLASHCARD QUESTION

Front

What is the area of a rectangle with a length of 10 m and a width of 5 m?

Back

7.

FLASHCARD QUESTION

Front

What is the area of a triangle with a base of 8 m and a height of 5 m?

Back

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