Gutter
A sheet of metal of width $l=10$ is to be bent along the middle to form a v-shaped gutter.
What angle (measured from being flat to the bend) will maximize the cross-sectional area?
$\theta =$
A sheet of metal of width $l=10$ is to be bent along the middle to form a v-shaped gutter.
What angle (measured from being flat to the bend) will maximize the cross-sectional area?
$\theta =$