Question

1 point
Q. If radius of a circle is
increased to twice its original
length, how much will the area
of the circle increase?
O 5 times
O2 times
O 3 times
О
4 times​

Answer 1

Answer:

4 times.

Step-by-step explanation:

Hope it helps you....

Answer 2

AnSwer -:


The area will increased by 4 time

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Formula of area of circle-:

“A =π r^2”

A = Area

R = Radius

π = 22/7 or 3.14

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Explanation-:

Solution-:

Given,

If Radius of a circle is increased to twice

its original length.

To find,

How much area of the circle increase

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Let the Radius of a circle = r

Formula of area of circle-:

“A =π r^2”

A = Area

π = 22/7 or 3.14

r = radius

According to the question

If ,

The radius of the circle is doubled = 2r

Then,

Area 1 of circle-: π r^2

Then ,

Area 2 of circle-: π (2r)^2

=4 π r^2


Then ,

Area 2 of the circle-: 4 π r^2

Now ,

A1 / A2

A1 = Area 1 = π r^2

A2 = Area 2 = 4 π r^2

= π r^2 / 4 π r^2

= 4

Hence ,

The area will increased by 4 time

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Circle-: A circle is a round shaped figure

that has no corners or edges.

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