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qwelly [4]
3 years ago
12

If the radius of a circle is increased by a factor of 5, the area increases by a factor of:

Mathematics
1 answer:
Darya [45]3 years ago
7 0

The area will be increased by 25. Option C

Step-by-step explanation:

Given,

The radius of a circle is increased by 5.

To find how much the area will be increased.

Let us take,

The original radius of the circle is = r

The original area = πr²

Again,

After increasing the radius = 5r

Then the area will be = π(5r)² = 25πr²

= 25( original area)

Hence,

The area will be increased by 25.

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