Perimeter and Chapter 11 - NCERT
at the rate of ` 150 per metre. SOLUTION The length of the fence required is the perimeter of the garden (excluding one side ) which is equal to 20 m + 12 m + 12 m, i.e., 44 m. Cost of fencing = ` 150 × 44 = ` 6,600. EXAMPLE 4 A wire is in the shape of a square of side 10 cm. If the wire is rebent into a rectangle of length 12 cm, find its ...
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