please solve 7(ii)
Q.7. Find the area enclosed by the following figures in which each pair of consecutive sides are at right angles.
(ii)

Dear Student,

Please find below the solution to the asked query:

As given : Each pair of consecutive sides are at right angle , So we form our diagram , As :

Here , ABCD , PQRS and EFGH are rectangle

And we know area of rectangle  =  Length × Breadth , So

Area of rectangle ABCD  =  AB × AD =  3 × 12  =  36 cm2 ,

Area of rectangle PQRS =  PQ × QR =  3 × 12  =  36 cm2

And

Area of rectangle EFGH =  EF × FG =  5 × 4  =  20  cm2

Therefore,

Area of given shape  =  Area of rectangle ABCD + Area of rectangle PQRS + Area of rectangle EFGH , Substitute all values we get :

Area of given shape  = 36 + 36 + 20 =  92 cm2                                               ( Ans )
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