The area of a circle is given by circle ${?}_{?}$area $=**$ circle ${?}_{?}$radius ${?}^2.$ Read circle$\_$radius from input as a float and compute circle$\_$area using the formula.

Ex: If the input is $1\mathrm{.}70,$ then the output is:

$9\mathrm{.}08$

Note:

Use math.pi for $.$

circle$\_$radius ${?}^2$ can be computed using $*.$

$1$ import math

$2$ circle$\_$radius float$($input$)$

$3$ circle$\_$area $=$ math.pi $**$ circle$\_$radius $****2$

$4$

$5$ print$($f$\text{'}\{$circle$\_$area: $.2f)$