a circle of radius 10 cm is cut out a rectangle piece of an aluminium sheet having length 30 cm and breadth 20 cm. what is the area of the left over aluminiun sheet? (take π = 3.14)
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Answer:
Area of remaining sheet = 286cm^2
Step-by-step explanation:
Length of Rectangular sheet = 30cm
Breadth of Rectangular sheet = 20cm
Area of Rectangular sheet = ( l × b )
= 20×30
= 600 cm^2
____________________________
Radius of circle = 10cm
Area of the circle = πr^2
= 3.14×10×10
= 314cm^2
_____________________________
Area of Remaining sheet :-
= area of rectangle - area of circle
= 600 - 314
= 286cm^2
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