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If the radius of a circle is increased by 6%, find the percentage increase in its area.

A) 15%
B) 12.36%
C) 8.39%
D) 17%

Correct Answer:


B) 12.36%

Description for Correct answer:

Given that, a = 6

According to the formula,

Percentage increase in area

= \( \Large \left(2a+\frac{a^{2}}{100} \right) \% \)

= \( \Large \left(2\times 6+\frac{86}{100} \right)% \)

= (12 + 0.36)% = 12.36%

Part of solved Area and perimeter questions and answers : >> Elementary Mathematics >> Area and perimeter

Comments

Similar Questions

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