What is the circumference of the circle in inches? Use the formula C=​𝜋d where C is the circumference of a circle and d is the diameter.

Question

( 3) <--- pretend its a circle

answer options:
3𝜋
6𝜋
8𝜋
81𝜋

Answer 1

The formula for the circumference \( C \) of a circle is given by:

\[ C = \pi d \]

where \( d \) is the diameter of the circle. In this case, you indicated that the diameter is 3 inches.

Now, substituting the diameter into the formula:

\[ C = \pi \times 3 = 3\pi \]

Therefore, the circumference of the circle is:

\[ \boxed{3\pi} \]