If radius of circle is creased by 1% then its area will b increased by
1/2 %
1%
2%
3%
As we have learned
Rate Measurement -
Rate of any of variable with respect to time is rate of measurement. Means according to small change in time how much other factors change is rate measurement:
- wherein
Where dR / dt means Rate of change of radius.
Diffrentiating both sides , with respect to 'r'
Here
so
Area will be increased by 2 %
Option 1)
1/2 %
Option 2)
1%
Option 3)
2%
Option 4)
3%
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