Question

Find the area of the shaded field shown in figure if the length and breadth of rectangle
are 8cm and 4cm respectively and diameter of semicircle is 4cm.​

Answer 1

Answer:

Redraw the figure and divide it into well known shapes. It is clear from the figure that there is one semicircle and one rectangle.

Rectangle Circle

l=8m r=6−4=2

b=4m

Area of shaded region = Area of rectangle + Area of semicircle

=l×b+

2

πr

2

=8+4+π×

2

2×2

=(32+2π)m

2

Hence, the required area of shaded region =(32+2π)m

2

.

solution

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