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Find the circumference of a circle 2.1 cm

Sagot :

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Answer:

C≈13.19 cm

Step-by-step explanation:

The circumference of a circle equation is C=2πr. Use the circumference of a circle equation and substitute the radius for 2.1. Then, you can calculate 2·π·2.1. The answer to the circumference of a circle is about 13.1946. Finally, you round to the nearsest hundredths place, so the answer is about 13.19 cm.

Work

C=2πr

C= 2·π·2.1

C≈13.1946≈13.19

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