Q 7. Calculate the area of the shaded region.
15 cm 14 cm 12 cm 5cm
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Step-by-step explanation:
given that the diameter of semi circle is 14 cm
breadth of the given rectangle is equal to the half the diameter
=7cm
area of the shaded region is equal to total area - area of the quarter circle
therefore
the area of the quarter circle =2
4
πr
2
=77cm
2
total area = area of semi circle +area of rectangle=r×2r+
2
πr
2
=98+77=175
therefore the are of the shaded region is
175−77=98cm
2
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