Question

Find the Circumference of the circle if the diameter is 20” in terms of pi and with an estimated answer

Answer 1

To find the circumference \( C \) of a circle, you can use the formula:

\[
C = \pi \times d
\]

where \( d \) is the diameter of the circle. Given that the diameter is 20 inches, we can substitute this value into the formula:

\[
C = \pi \times 20
\]

Thus, the circumference in terms of \( \pi \) is:

\[
C = 20\pi \text{ inches}
\]

To provide an estimated numerical answer, you can use \( \pi \approx 3.14 \):

\[
C \approx 20 \times 3.14 = 62.8 \text{ inches}
\]

So, the circumference of the circle is \( 20\pi \) inches or approximately \( 62.8 \) inches.