Polygon Area Review

Area of Polygons Review

Fill in the Blank

What is the area of this rectangle?

Area of a Rectangle = length x width

4 x 3 = 12

Multiple Choice

What is the area of this rectangle?

• 20 cm²

• 80 cm²

• 40 cm²

• 30 cm²

Area = 40 cm²

8 x 5 = 40

Multiple Choice

The area of this rectangle is 32 cm2. What is the missing width?

• 12 cm

• 4 cm

• 6 cm

• 8 cm

width = 8 cm

 $8\times4=32$   or $32\ \div4\ =\ 8$  

Multiple Choice

This parallelogram has a height of 7 cm and a base of 8 cm.

What is the area?

• 54 cm²

• 68 cm²

• 56 cm²

• 64 cm²

Area = 56 cm²

height = 15 cm

 $15\times20=300$  or  $300\div20=15$  

Multiple Choice

What is the area of this parallelogram?

• 35

• 28

• 140

• 27

Multiple Choice

The area of the parallelogram is 300 cm². The base length is 20 cm.

What is the missing height?

• 18 cm

• 30 cm

• 20 cm

• 15 cm

Area = 4 x 7 = 28

You should not use the 5. It is not the base or the height.

Multiple Select

Which formulas can we use for the area of a triangle?

• $$\frac{1}{2}\times base\times height$$  

• $$base\ \times\ height$$  

• $$\frac{base\ \times height}{2}$$  

Multiple Choice

What is the area of the triangle?

• 24 cm²

• 12 cm²

• 14 cm²

• 10 cm²

Area = 12 cm²

Multiple Choice

The Area of the triangle is 150.

What is the height of the triangle?

• 15 cm

• 18 cm

• 20 cm

• 25 cm

h=15

 $\frac{1}{2}\times20\times15=150$  or  $150\div\frac{1}{2}\div20=15$  

Multiple Choice

What is the area of the trapezoid?

• 42 cm²

• 84 cm²

• 92 cm²

• 36 cm²

Multiple Choice

What is the area of the trapezoid?

• 70 cm²

• 90 cm²

• 120 cm²

• 60 cm²

Multiple Select

What shapes make this composite figure

• rectangle

• trapezoid

• square

• triangle

• pentagon

Multiple Select

What is the height of the triangle and the rectangle (represented by a and b).

• 12

• 4

• 3

• 9

• 6

Multiple Choice

base of the triangle (represented by c)?

• 4

• 5

• 10

• 9

Multiple Choice

What is the area of the triangle?

• 42.8 cm²

• 32.5 cm²

• 40.5 cm²

• 70.9 cm²

Multiple Choice

What is the area of the rectangle?

• 12 cm²

• 14cm²

• 15 cm²

• 20 cm²

Multiple Choice

Add the 2 areas together.

What is the area of the composite figure?

• 55.5 cm²

• 24.6 cm²

• 91.2 cm²

• 67.4 cm²

Show What you Know!

Answer these questions to show what you know about area.

Multiple Choice

What is the area of the triangle?

• 35 sq. meters

• 140 sq. meters

• 70 sq. meters

• 72 sq. meters

Multiple Choice

What is the area of the triangle?

• 33 sq. units

• 66 sq. units

• 37 sq. units

• 74 sq. units

Multiple Choice

What is the area of the parallelogram?

• 18 sq. units

• 15 sq. units

• 7.5 sq. units

• 9 sq. units

Multiple Choice

What is the area of the trapezoid?

• 40

• 22.5 m²

• 26 m²

• 36 m²

Multiple Choice

Find the area.

• 37.1 in²

• 74.2 in²

• 77.1 in²

• 68.5 in²

Multiple Choice

Find the area.

• 25.8 ft²

• 42.79 ft²

• 51.59 ft²

• 103.18 ft²

Multiple Choice

Find the area.

• 50 cm²

• 12.5 cm²

• 25 cm²

• 27.6 cm²