f the radius of a circle is multiplied by 4, then how many times larger is the circumference of the new circle?

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Pi. f the radius of a circle is multiplied by 4, then how many times larger is the circumference of the new circle?

2.

4.

8.

Pi. @Mathematics

Question

f the radius of a circle is multiplied by 4, then how many times larger is the circumference of the new circle?

2.

4.

8.

Pi.  f the radius of a circle is multiplied by 4, then how many times larger is the circumference of the new circle?

2.

4.

8.

Pi.  @Mathematics

anonymous · Answer

4 times, since circumference is linearly related to circumference

turingtest · Answer

$$R_2=4R_1$$$$C_1=2 \pi R_1$$$$C_2=2\pi R_2=2 \pi(4R_1)=8\pi R_1=4C_1$$so the ansewer is

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