AREA

Area of a Square The area of a square that has a side-length of 1 cm is 1 square centimetre (or 1 cm2).  To find the area of a square by the method of counting squares, we divide the square into smaller squares of one centimetre side-length . Consider a square that has a side-length of 4 cm. Using the method of counting squares, we find that the area of the square is 16 cm2. Clearly, the square contains 4 rows of 4 squares.  Therefore: This suggests that: The area of a square is equal to its side-length multiplied by its side-length.  That is: Using the pronumerals A for area and s for side-length, we can write it simply as: This is the formula for the area of a square. Example 1 Find the area of a square flower-bed of side 15 m. Solution:
Note: To find the area of a region enclosed within a plane figure, draw a diagram and write an appropriate formula.  Then substitute the given values and use a calculator, if necessary, to obtain the required area.