Math, asked by honestraj1210, 9 months ago

70.if the radius of a circle is
doubled, area is multiplied by
ஒரு வட்டத்தின் ஆரம் இருமடங்
கானால், அதன் பரப்பளவை
ஆல் பெருக்க வேண்டும்.
a)3 b)2 c)4 d}8

Answers

Answered by rachita07
6

Answer:

c. 4

Explanation :-

Area of circle

 = \pi {r}^{2}

If radius is doubled, it becomes...

 = \pi( {2r)}^{2}

 = 4\pi {r}^{2}

Answered by mehul2403
1

Answer:

c. 4

Explanation :-

Area of circle

 = \pi {r}^{2}

If radius is doubled, it becomes...

 = \pi( {2r)}^{2}

 = 4\pi {r}^{2}

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