Question

If the radius of a circle is doubled its area becomes times a). 6 b).2 c). 4 d).1 ​

Answer 1

Answer:

So when you double the radius, the area goes up by 4 times because 2 squared is 4. The area will always go up by the square of how much the radius goes up. By contrast, the circumference will only double -- from 12.56 to 25.12 because you do not square the radius (or diameter) -- you just multiply it by pi.

Answer 2

Answer:

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