52.0k views
2 votes
If the circumference is 18in , what is the diameter ?

A)6 in
B) 4in
C)5.73 in
D)5 in
E)8.5 in

User Nuts
by
6.7k points

2 Answers

2 votes

Answer:

C

Explanation:

Circumference can be found using

c=
\pid

We know the circumference is 18, so we can substitute it in

18=
\pid

We want to find d, so we have to isolate it.

To do this, divide both sides by pi

d=5.72957795131

Rounded to the nearest hundreth

d=5.73

Diameter is 5.73 inches, or choice C

User Seph Cordovano
by
6.2k points
5 votes

Answer:

the answer is c

Explanation:

you work backwards so divide it by pi so 3.14 in this case and then you have the diameter

User Alex Chesters
by
5.5k points
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