Question

If the radius of a circle is doubled ,then it's area will increase by________times.​

Answer 1

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• 4 Times

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Answer 2

Answer:

Area will be Quadrupled

Step-by-step explanation:

A = $\pi r^{2}$

If r = x

A = $\pi x^{2}$

If r= 2x

A = $\pi (2x)^{2}$

   = $\pi 4x^{2}$

A = 4 $\pi x^{2}$

Area will be quadrupled (4x)