The circumference of a circle is found via the equation: [tex]C= \pi d[/tex], d being the diameter of the circle.
Therefore, we know the diameter of the circle is 13 cm. Let us plug this into the equation:
[tex]C=13 \pi [/tex]
The question says to use 3.14 for [tex] \pi [/tex], so let's plug that in and solve:
[tex]C=3.14*13=40.82[/tex]
The question states that we need to round to the nearest tenth, so since the hundredths place contains a 2, we round down to 40.8 cm.
Therefore, we now know the circumference of the circle is D) 40.8 cm.
