Find the area of the shaded region

we are given

three shapes

first is rectangle

second is circle

third is triangle

we can find area of each shapes and then subtract them accordingly to find shaded area

Area of rectangle:

length=l=18

width=w=6

we know that

area = length*width

Area of semicircle:

we are given

radius =r=6/2=3

now, we can find area

Area of triangle:

base=b=9

height=h=6

now, we can find area

Area of shaded region:

Area = rectangle -triangle -2*semicircle

so, we get

we get

so, option-B..........Answer

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