If the radius of a circle is increased by 1% then the area of that circle increases by what percent?

If the radius of a circle is increased by 1% then the area of that circle increases by what percent? ?

Created: 1 week ago | Updated: 1 week ago | Created By:

Imran Ahmed

1.01%

1.1%

2.1%

2.01%

0 1

Best Answer Explained in Below-:

Previous values = 10 unit Present radius = (10 + 10 × 1%) = 10.1 Previous area = π\(r^{2}\) = π×102 = 100π Present area = π(10.1)2 = 102.01π Increase of area = (102.01π - 100π) = 2.01π Precent of increase = (2.01π100π×100)% = 2.01%

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Rashid can do a piece of work in 8 days, which Tipu can finish in 12 days. If they work at it on alternate days with Rashid beginning, in how many days, the work will be finished?

If the radius of a circle is increased by 1% then the area of that circle increases by what percent? ?

Rashid can do a piece of work in 8 days, which Tipu can finish in 12 days. If they work at it on alternate days with Rashid beginning, in how many days, the work will be finished?

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