Question

Find the circumference of a circle with a Diameter = 12 m. Use 3.14 for π and round to 2 decimal places. ANS. C= B_____________. m

Answer 1

The circumference of a circle is given by the formula

`s=2\cdot\pi\cdot r`

however we also knos that the diameter can be written as

`D=2\cdot r`

meaning that the formula for the circumference can also be written as

`s=D\cdot\pi`

then the circumference for the given information is:

`\begin{gathered} s=12\cdot3.14 \\ s=37.68 \end{gathered}`