What is the area of a triangle with a base of 10 u and a height of 5 u?

$$A = \frac{1}{2} \times 10u \times 5u = 25u^2$$ .

What is the area of a rectangle with a length of 8 m and a width of 2 m?

$$A = l \times w = 8 \times 2 = 16 m^2$$ .

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

$$A = \pi r^2 = \pi (5^2) = 25\pi cm^2$$ .

What is the area of a rectangle with an area of 20 cm^2 and a width of 4 cm?

$$l = \frac{A}{w} = \frac{20}{4} = 5 cm$$ .

What is the area of a triangle with a base of 6 cm and a height of 4 cm?

$$A = \frac{1}{2} \times 6 \times 4 = 12 cm^2$$ .

What is the area of a parallelogram with a base of 10 m and a height of 5 m?

$$A = b \times h = 10 \times 5 = 50 m^2$$ .

What is the area of a trapezoid with bases of 3 cm and 5 cm, and a height of 2 cm?

$$A = \frac{1}{2} (b_1 + b_2) \times h = \frac{1}{2} (3 + 5) \times 2 = 8 cm^2$$ .

Area Flashcards

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the formula to find the area of a rectangle?

Back

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

2.

FLASHCARD QUESTION

Front

What is the formula to find the area of a triangle?

Back

Tags

CCSS.6.G.A.1

3.

FLASHCARD QUESTION

Front

What is the formula to find the area of a parallelogram?

Back

Tags

CCSS.6.G.A.1

4.

FLASHCARD QUESTION

Front

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

Back

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

5.

FLASHCARD QUESTION

Front

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

Back

Tags

CCSS.7.G.B.4

6.

FLASHCARD QUESTION

Front

What is the area of a trapezoid with bases of 5 cm and 7 cm, and a height of 4 cm?

Back

Tags

CCSS.6.G.A.1

7.

FLASHCARD QUESTION

Front

What is the area of a parallelogram with a base of 6 m and a height of 3 m?

Back

Tags

CCSS.6.G.A.1

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