The radius of a circle is increased by 12%, then area increased by?
Answer & explanation
Correct answer: option 4
Using the formula for net effect = x% + x% + \(\frac{x\;× \;x}{100}\) %
⇒ Net Effect = 12% + 12% + \(\frac{12\;×\;12}{100}\)% = 25.44%
The radius of a circle is increased by 12%, then area increased by?
Correct answer: option 4
Using the formula for net effect = x% + x% + \(\frac{x\;× \;x}{100}\) %
⇒ Net Effect = 12% + 12% + \(\frac{12\;×\;12}{100}\)% = 25.44%