If a diameter of the circle increased by 40percent then iys area increase by
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Increased diameter=100+40%of 100=140 cm. If diameter increases by 40%, radius will also be increased by the same percentage. If radius is 1 unit and increased by 40%, it will become 1.4 units and on squaring it becomes 1.96 (Area of a circle = pi*r*r). Thus, the area increases by 96%.
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