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The radius of a circle is increased by 35%, then area increased by? |
82.25% 81.25% 83.25% 85.25% |
82.25% |
Using the formula for net effect = x% + x% + \(\frac{x\;× \;x}{100}\) % ⇒ Net Effect = 35% + 35% + \(\frac{35\;×\;35}{100}\)% = 82.25% |
