Answer
$\pi$ square units
Work Step by Step
The diameter of the circle is $d=2$ units.
The area $A$ of a circle is given by the formula $A=\pi \left(\frac{d}{2}\right)^2$.
Substitute the value of $d$.
$A=\pi\left(\frac{2}{2}\right)^2$
$A=\pi$ square units.
Hence, the area of the shaded region is $\pi$ square units.
