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•Remove all other thoughts from your mind.•Pay close attention.•Try all the examples.• Ignore all other distractions.


Polygon:Any straight-sided closed plane figure.


Polygons come in all shapes and sizes.


Name# of sides Picture

3 Triangle

4 Quadrilateral

5 Pentagon

6 Hexagon

8 Octagon

10 Decagon


Name The Quadrilateral

parallelogram

rectanglerhombus

square

trapezoid

1) 2) 3)

4) 5)


Name The Quadrilateral The sum of all the angles equals

360º degrees in a quadrilateral.

90º

90º

90º

90º


Today we are going to find the Area of the Polygons Rectangles & Squares.


How many squares cover this rectangle?

height

base(h)

(b)

The area of this rectangle is 12 squares or 12 units squared.

Area is the number of square units that are needed to cover the surface of a figure.


2 units x 6 units = 12 units2.

2 units

6 units

Label the dimensions of this rectangle.

Area is in units2 because you are

multiplying units.


2 units

6 units

We found the area of the rectangle by multiplying the base times the height.

A = bh

The area of a rectangle is also known as the length times the width. A = bh is the same as A = lw


What is the area of the rectangle?

5 ft.

6 ft.

56x

30 ft.2

30 ft2 or square feet


PERIMETER: Is the distance around a figure.

in + in + in + in = in

AREA: Is the square units that cover a figure.

length • width = in • in = in2

VOLUME: The number of cubic units inside a figure.

length • width • height in • in • in = in3

length

width

length width

height

squared

cubed


What is the area of the rectangle?

2 in.

5 in.

25x

10 in.2

10 in2 or square inches


A square is a special rectangle.Since the base and the height are the same size, we call them sides (s)

instead of base and height.

sheight = s

s

base = s

A= s2


What is the area of the square?

4 m.

4 m.

44x

16 m.2

16 m2 or square meters


What is the area of the square?

5 in.

5 in.

55x

25 in.2

25 in2 or square inches


The End!Take out your study guide!


The Area of a figure is the number of square units needed to cover it.

A = 2 3 6 square units

6 units2

2

3

Rectangle

45

A l w A 5 4

220 un

2A = s

8m 8m

A 8 8 264 m

Square

#1


#2

PERIMETER: Is the distance around a figure.

in + in + in + in = in

AREA: Is the square units that cover a figure.

length • width = in • in = in2

VOLUME: The number of cubic units inside a figure.

length • width • height in • in • in = in3

length

width

length width

height

squared

cubed

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