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Can someone please help me with this? 1. By what factor does the circumference change if the radius is tripled? Explain.
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Can someone please help me with this?

1. By what factor does the circumference change if the radius is tripled? Explain.

Can someone please help me with this? 1. By what factor does the circumference change-example-1
User Midi
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1 Answer

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The circumference of a circle with radius
r is
2\pi r. If the length of the radius is tripled, then the circumference becomes
2\pi(3r)=3\cdot2\pi r, which is just 3 times the original circle's circumference.
User Harshavardhana
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