Question

find the area of shaded region in each of the following figures​

Answer 1

Step-by-step explanation:

Area of Shaded region = Area of outline rectangle - Area of inner rectangle

i)  Area of outline rectangle

Length = 9 + 3 + 3 = 15 m

Breadth = 12 + 2 + 2 = 16 m

Area = Length × Breadth

        = 15 × 16

       = 240 m sq

ii) Area of inner rectangle

Length = 12 m

Breadth = 9 m

Area = Length × Breadth

        = 12 × 9

       = 108 m sq

iii) Area of Shaded region = Area of outline rectangle - Area of inner      rectangle

Area of Shaded region = 240 - 108

                                      = 132 m sq

Therefore Area of shaded region is 132 m sq

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