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In the question attached , why do we consider only the area of semicircle and why not the area of the complete circle?

In the question attached , why do we consider only the area of semicircle and why not the area of the complete circle? 

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Grade:10

1 Answers

Arun
25750 Points
4 years ago
Dear student
 
because of the equation y
 
hence x+y = 0 divides the circle in two equal parts. Hemce we will take common parts which is semicircle 

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