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4 votes
If the diameter of my circle is 2 cm what is the circumference in cm only type numbers rounded to the nearest hundredreth

User Savanna
by
7.6k points

2 Answers

4 votes

Answer:

6.28 cm

Explanation:

c = 2π·r = d·π

c = 2cm·3.14 = 6.28 cm

User Steve In CO
by
7.4k points
1 vote

The number
\pi is defined exactly as the ratio betweent the circumference and the diameter. We deduce that


\pi=(C)/(d)\iff C=\pi d

So, your cimference is
2\pi. You can use the approximation
\pi=3.14 to round to the nearest hundredreth:
2\pi\approx 6.28

User Labibah
by
8.2k points

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