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Solve for the missing variable.

c=2pi

Circumference of a circle

c=7.68
pi=3.14
PLZ HELP ME!!

User Cyberience
by
8.2k points

2 Answers

2 votes
there wasn't much to go off of but based of the information you've gave me the answer would be 7.68=6.28
User Mlouro
by
7.4k points
3 votes
Actually the circumference of a circle is :

C =2Pi*r

Where r = radius, the radius term r, was missing in your expression.

C = 2Pi*r

7.68 = 2*3.14*r

2*3.14*r = 7.68

6.28r = 7.68

r = 7.68 / 6.28

r ≈ 1.223

So in solving for the missing variable, r ≈ 1.223

Hope this explains it.
User Dowwie
by
8.5k points

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