BellKelsey2006 BellKelsey2006

26-02-2022
Mathematics

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If the radius of a circle is doubled, how does the area of the circle change?

If the radius of a circle is doubled how does the area of the circle change class=

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jennygoodwell123 jennygoodwell123

26-02-2022

Answer:

Quadruple the size

Step-by-step explanation:

Explanation:

When you enlarge a linear measurement by a scale factor a the area changes by a scale factor a2

So when you double the radius. scale factor 2, the area is increased by a scale factor:

22=4

So the area is quadrupled in this case.

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