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If the diameter of a circle changes from 5cm to 15cm, how will the circumference change

If the diameter of a circle changes from 5cm to 15cm, how will the circumference change
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If the diameter of a circle changes from 5cm to 15cm, how will the circumference change

asked
User Sandeep Singh Rawat
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7.6k points

1 Answer

7 votes
The circumference will triple.

C=πd
For d=5cm, this is C=5π.
For d=15cm, this is C=15π.

The second one is 3 times the first one.
answered
User Upitau
by
8.2k points
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