Free Printable 9.1 Area Formulas

1.

What is the area formula for a PARALLELOGRAM?

a)

A= bh

b)

A= s²

c)

A= ¹/₂ b h

d)

A= ¹/₂ (b1 + b2) h

2.

What is the area formula for a TRIANGLE?

a)

A= bh

b)

A= s²

c)

A= ¹/₂ b h

d)

A= ¹/₂ (b1 + b2) h

3.

The formula for the area of a CIRLE is...

a)

A = π d

b)

A = π r²

c)

A = π r

d)

A = π 2r

4.

Select the correct expression for calculating area of this trapezoid.

a)

$A=\frac{1}{2}\ \ \left(17\ +\ 16\right)39$

b)

$A=\frac{1}{2}\ \ \left(17\ +\ 39\right)$

c)

$A=\left(17\ +\ 39\right)16$

d)

A=\frac{1}{2}\ \ \left(17\ +\ 39\right)16

5.

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

a)

$A=\frac{1}{2}\left(6.2\right)\left(7.2\right)$

b)

$A=\left(6.2\right)\left(7.2\right)$

c)

$A=\frac{1}{2}\left(6.2+7.2\right)$

d)

$A=\frac{1}{2}\left(6.2+7.2\right)\left(7.2\right)$

6.

What formula can be used to find the area of this triangle?

a)

$A=\left(8\right)\left(10\right)$

b)

$A=\frac{1}{2}\left(7\right)\left(9\right)$

c)

$A=\left(7\right)\left(9\right)$

d)

$A=\frac{1}{2}\left(8\right)\left(10\right)$

7.

Select the equation that shows how to calculate the are of this triangle.

a)

$A=\left(12\right)\left(17\right)$

b)

$A=\ \frac{1}{2}\left(12\right)\left(17\right)$

c)

$A=\left(\frac{1}{2}\right)\left(12\ +17\right)$

d)

$A=\left(\frac{12+17}{2}\right)$

8.

Indicate the correct formula to find the area of the figure.

a)

$A=\frac{\pi\left(2.9\right)^2}{2}$

b)

$A=\frac{\pi\left(2.9\right)^{ }}{2}$

c)

$A=\pi\left(2.9\right)^{ }$

d)

$A=\pi\left(2.9\right)^2$

9.

Choose the correct formula to find the area of the figure.

a)

$A=\frac{\left(35+35\right)38}{2}$

b)

$A=\frac{\left(35+35\right)13}{2}$

c)

$A=\frac{\left(13+38\right)32.7}{2}$

d)

$A=\frac{\left(13+38\right)35}{2}$

10.

Choose the correct formula to find the area of the figure.

a)

$A=\frac{27\left(16\right)}{2}$

b)

$A=\frac{27\left(20.9\right)}{2}$

c)

$A=27\left(16\right)$

d)

$A=27\left(20.9\right)$

11.

What formula would you use to find the AREA of the shaded region?

a)

$A=\ 22\left(22\right)-\pi\left(11\right)^2$

b)

$A=\ 22\left(22\right)-\pi\left(22\right)^{ }$

c)

$A=\ 22\left(22\right)-\pi\left(22\right)^2$

d)

$A=\ 22\left(22\right)-\pi\left(11\right)^{ }$

12.

What is the area of the rectangle?

(a)

13.

What is the length of the missing side of the rectangle?

(a)

14.

What is the length of the missing side of the rectangle?

(a)

15.

What is the area of the parallelogram?

(a)

16.

What is the height of the parallelogram?

(a)

17.

What is the area of the triangle?

(a)

18.

What is the area of the triangle?

(a)

19.

What is the base of the triangle? ROUND to the tenths place.

(a)

20.

What is the area of the trapezoid?

(a)

21.

What is the measurement of the missing base for the trapezoid?

(a)

22.

Determine the radius of the penny

a)

59.66 mm

b)

9.5 mm

c)

38 mm

d)

119.32 mm

9.1 Area Formulas

Total questions: 22

Worksheet time: 6hrs 30mins

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