What is the formula for the area of a sector of a circle?

$$A=\frac{\theta}{360} \times \text{Area of Circle}$$

What is the formula for the area of a regular polygon?

$$A=\frac{1}{2} \times \text{Perimeter} \times \text{Apothem}$$

What is the formula for the area of an ellipse?

$$A=\frac{\text{π}ab}$$ where a and b are the semi-major and semi-minor axes.

What is the formula for the area of a trapezium?

$$A=\frac{(b_1+b_2)}{2} \times h$$

What is the formula for the area of a sector?

$$A=\frac{r^2\theta}{2}$$ where θ is in radians.

What is the formula for the area of a kite?

$$A=\frac{d_1 \times d_2}{2}$$ where d_1 and d_2 are the lengths of the diagonals.

What is the formula for the area of a composite shape?

Add the areas of the individual shapes.

Unit A Flashcard A4 Flashcards

Student preview

15 questions

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1.

FLASHCARD QUESTION

Front

Formula for the area of a circle

Back

Tags

CCSS.7.G.B.4

2.

FLASHCARD QUESTION

Front

Formula for the area of a triangle

Back

Tags

CCSS.6.G.A.1

3.

FLASHCARD QUESTION

Front

Formula for the area of a rectangle

Back

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

4.

FLASHCARD QUESTION

Front

Formula for the area of a trapezoid

Back

Tags

CCSS.6.G.A.1

5.

FLASHCARD QUESTION

Front

Formula for the area of a square

Back

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

6.

FLASHCARD QUESTION

Front

What is the value of the missing side if one side is 7.8?

Back

7.8

Tags

CCSS.HSG.CO.A.1

7.

FLASHCARD QUESTION

Front

What is the formula for the area of a parallelogram?

Back

Tags

CCSS.6.G.A.1

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