Write a MATLAB script file for determining the area of rectangles $(A_r),$ triangles $(A_t)$ and circles $(A_c)$

$A_r=bh$

$A_t=\frac{1}{2}bh$

$A_c=r^2$

$($a$)$ The code should start by using a menu command to ask the user whether the shapes is a rectangle, triangle or a circle. Depending on the chosen shape, it will use a conditional selection of if $-$then or switch$-$case and a function input to get the dimensions $b,h$ and $r$ from the user.

$($b$)$ Through the same conditional selection, the computed area is displayed on screen using fprint $f$ with three decimal places.