Answer
$Circumference \approx 9.4$ in.
$Area \approx 7.1$ inches$^{2}$
Work Step by Step
1. Find the circumference of the circle
Let $C =$ the circumference of the circle
$C = \pi \times 3$
$C = 3.14 \times 3$
$ C = 9.42$ in.
$C \approx 9.4$ in.
2. Find the area of the circle
$Let A =$ area of the circle
$A = \pi r^{2}$
$A = (3.14)(\frac{3}{2})^{2}$ (Since radius $= \frac{diameter}{2}$)
$A = (3.14)(1.5)^{2}$
$A = (3.14)(2.25)$
$A = 7.065$ inches$^{2}$
$A \approx 7.1$ inches$^{2}$