Question

Find the area and the circumference of a circle with radius 5 yd.Use the value 3.14 for it, and do not round your answers. Be sure to include the correct units in your answers.

Answer 1

$\begin{gathered} C=2\cdot\pi\cdot r \\ \\ A=\pi\cdot r^2 \end{gathered}$

r is the radius.

For the given circle:

$\begin{gathered} C=2\cdot3.14\cdot5yd \\ C=31.4yd \\ \\ \\ A=3.14\cdot(5yd)^2 \\ A=3.14\cdot25yd^2 \\ A=78.5yd^2 \end{gathered}$