Question

calculate the area of shaded region in the figure 11.3

Answer 1

hi friend
here's your answer looking for

area of outer rectangle =
$l \times b \\ = 27 \times 43 \\ = 1161 {m}^{2}$
area of inner rectangle =

$(27 - 3)(43 - 3) \\ = 24 \times 40 \\ = 960 {m}^{2}$
now,

area of shaded figure =
$1161 - 960 \\ = 201 {m}^{2}$
hope you are satisfied with my answer

Answer 2

Answer:

201 sq.m.

Step-by-step explanation:

Outer length = 43 m

Outer breadth = 27 m

width = 1.5 m

Inner length = 43-(1.5+1.5)=40

inner width = 27-(1.5+1.5)=24

Area of shaded region = Outer area - Inner area

                                     =$(43 \times 27) - (40 \times 24)$

                                     =[tex]201 m^2/tex]

Hence the area of the shaded region is 201 sq.m.