Page 194 - New Medley 4 Semester 2 PDF (Merged)

∴ Area of a rectangle = Length × Breadth

Also, consider the square 1 (b) again.

Each side of this square = 2 squares

and area calculated in 1 (b) = 4 sq. units

= 2 × 2 sq. units

= Side × Side

∴ Area of a square = Side × Side

Example 2: Find the area of the following figures.

(a) (b)

10 cm 12 cm

20 cm 12 cm

Solution: (a) Length of rectangle = 20 cm

breadth of rectangle = 10 cm

∴ Area of rectangle = Length × Breadth

= 20 cm × 10 cm

= 200 sq. cm

(b) Each side of square = 12 cm

∴ Area of square = 12 cm × 12 cm

= 144 sq. cm

Note: sq. cm is the short form of square centimetres. In the same way,
sq. m and sq. km are the short forms of square metres and square

kilometres.

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