Question

An irrigation canal has the shape of a trapazoid. Let x =the bottom width, y =the water depth, and theta=the angle of inclination of the sides from the vertical.

Show that the wetted perimeter P=x+2y/cos(theta)

Answer 1

not sure where to begin

Answer 2

I hope my horrible picture helps.

Answer 3

lol its alil hard to read

Answer 4

but i see what ur doing so that actually helps alot