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

You can use a formula to find the area of a square, rectangle, right triangle, and a parallelogram.

Area is always answered in square units.

 

Example 1: Rectangle

Find the area of the rectangle using
 the formula.
To find the area of a rectangle, multiply the length x width
Area = length x width
The length = 6 ft
The width = 2 ft
Area = 6 ft x 2 ft

The
area is 12 square feet.

 

Example 2: Square

Find the area of the square using
 the formula.
To find the area of a square, multiply the side x side
Area = side x side
Area = 3 ft x 3 ft

The
area is 9 square feet.

 

Example 3: Right Triangle

Find the area of the right triangle using the formula.

Area = 1/2 x base x height
A= 1/2 x b x h
A= 1/2 x 8m x 5m
A= 1/2 x 40 square meters
A= 20 square meters
The area is 20 square meters.

 

Example 4: Parallelogram

Find the area of the parallelogram using the formula.

Area = base x height
A= b x h
A= 4 units x 3 units
A= 12 square units
The area is 12 square units.

 

Remember: formulas
Rectangle : A = l x w
Square: A = s x s
Right triangle: A = 1/2 b x h
Parallelogram: A= b x h

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