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3 years ago

PLZ EXPLAIN , I WANT TO KNOW HOW TO DO

Mathematics

2 answers:

AlladinOne [14]3 years ago

5 0

Answer:

the answer is c, i just got it right

Step-by-step explanation: 6.15 inches, because it is the radius.

Phantasy [73]3 years ago

4 0

Make sure you know the formula pertaining to the question.

1. c=2(pi)(r)
2. c=2(pi)(d)

r= radius
d= diameter
c= sircumference

So we are given that the circumference of a circle is 12.3pi and the radius is unknown.

So let's plug in the known values

**we use the formula with the radius, becuase we are looking for the radius.

c=2(pi)(r)
12.3(pi)=2(pi)(r)

divide each side by pi

12.3=2(r)

divide each side by 2

r=6.15 in.

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3 years ago

Read 2 more answers