Change back to "area $\frac{?}{P}=$I $*$ radius $*$ radius;" Add the following two lines of code after "area $\frac{?}{P}=$I $*$ radius $*$ radius;":

$\frac{?}{PI}=3\mathrm{.}14$

double area$2=PI**$ radius $**$ radius;

Compile and run your code.

Does it compile and run? What kind of error is it $($specify error type$)?$ Explain why?