Answer:
Circumference of a circle is given by:
\(C = 2\pi r\)
where
C represents the circumference of a circle.
r represents the radius of a circle.
As per the statement:
Use \(\pi = 3.14\) and diameter(d) = 2r units
Circumference in terms of diameter (d) is:
\(C = 2 \pi r = \pi (2r) = \pi d\)
Substitute the value of \(\pi = 3.14\) we have;
\(C = 3.14d\) units
Now:
find the circumference in terms of radius r.
\(C = 2 \pi r\)
\(C = 2 \cdot 3.14 \cdot r = 6.28r\) units
Therefore, the exact formula for the circumference in terms of the diameter, d is, C = 3.14d and in terms of r is C= 6.28r.
