Question

plzz answer my question friends!!
you can answer any one of them!! ......
find the shaded portion ​

Answer 1

Answer:

1875 m², 490 m², 1505 m² respectively

Step-by-step explanation:

(b) The total area of rectangle is $75*50=3750$ m².

Area of non-shaded region : $\frac{1}{2} *(25*30+50*60)=\frac{3750}{2}$ m²

Area of shaded region : $\frac{3750}{2}=1875$ m²

(c) The total area of rectangle is $30*40=1200$ m².

Area of non-shaded region : $\frac{1}{2} *(10*40+20*18+30*22)=\frac{1420}{2} =710$ m²

Area of shaded region : $490$ m²

(d) The total area of rectangle is $40*42=1680$ m².

Area of non-shaded region : $15*5+10*10=175$ m²

Area of shaded region : $1505$ m²