The area of a square is given by the formula area =
width × height But since the width and height are by definition the same, the formula is usually written as area = s2
10cm
10cm
10cm
10cm
Area = 100cm2
A rectangle is a quadrilateral with 4 right angles. A
square is a quadrilateral with 4 congruent sides and 4
right angles.
The formula for the area of a rectangle/square is
A=lw, where A represents the area expressed in the
square units, l represents the length, and w represents the width
To find the area of a parallelogram, multiply the
base by the height. The formula is:
where
is the base,
and · means multiply.
5 cm
Area = (5)(5) = 25 cm2
5 cm
Example 1: Find the area of a parallelogram with
a base of 12 centimetres and a height of 5 centimetres.
Solution:
= (12 cm) · (5 cm)
= 60 cm2
is the height,