Find the area of the shaded portion in the
given attachment
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REFER ATTACHMENT FOR DIAGRAM
(1)
Given : Radius = 7 cm
Side of a square = 7 + 7 = 14 cm
Therefore, Area of square = 14 x 14 = 196 cm^2
Area of a circle = πr^2
=> 22/7 x 7 x 7
=> 22/7 x 49
=> 154 cm^2
Hence, Area of shaded portion is :-
=> 196 - 154 = 42 cm^2
_______________________________
(2)
Given :
r1 = 4.5 m
r2 = 2.5 m
Area of a circle = πr^2
=> 22/7 (4.5^2 - 2.5^2)
=> 22/7 (20.25 - 6.25)
=> 22/7 (14)
=> 44 cm^2.
Hence, Area of shaded region is 44 cm^2
Step-by-step explanation:
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