SOLUTION: Find the area and the circumference of a circle with diameter 4cm . Use the value 3.14 for π , and do not round your answers. Be sure to include the correct units i

Algebra ->  Surface-area -> SOLUTION: Find the area and the circumference of a circle with diameter 4cm . Use the value 3.14 for π , and do not round your answers. Be sure to include the correct units i      Log On


   

Question 1085285: Find the area and the circumference of a circle with diameter
4cm
.
Use the value
3.14
for
π
, and do not round your answers. Be sure to include the correct units in your answers.
Found 2 solutions by MathLover1, Alan3354:
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

The circumference of a circle is found using this formula:
C=pi%2Ad where d=diameter
or
C=2pi%2Ar where r=radius
you are given diameter d=4cm, so use
C=pi%2Ad
C=3.14%2A4cm
C=12.56cm

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Using 3.14 for pi is "rounding of answers."