In the adjoining figure find the area of the shaded part.
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Length of the whole rectangle = 18 cm
Breadth of the whole rectangle = 14 cm
Area of the whole rectangle = l × b
= 18cm × 14cm
= 252 cm^2.
Length of the unshaded portion of the rectangle = 12cm
Breadth of the unshaded portion of the rectangle = 8 cm
Area of the unshaded portion of the rectangle = l×b = 12cm × 8cm = 96cm^2 .
Thus , Area of the shaded part = ( Area of the whole rectangle) - (Area of the unshaded portion of the rectangle)
= 252cm^2 - 96cm^2 = 156cm^2 .
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