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Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

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BuyFindarrow_forward

Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
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The ratio of the circumferences of two circles is 2:1. What is ratio of their areas?

To determine

To Find:

The ratio of the areas of the circle.

Explanation

Given:

The circumference of the two circles is 2:1.

Formula used:

The circumference of the circle is C=2πr.

The area of the circle is A=πr2.

Calculation:

We know that, the circumference of the circle is C=2πr.

Let r1 and r2 be the radius of the two circles,

Then, the radius of the two circles is r1=2C2π=Cπin.andr2=C2πin

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