Plot the Ogee crest profiles for the dam whose properties are

given below for the following $2$ cases;

a$)$ for vertical upstream face $($ use USCE approach with the

Craeger's equation up to so$-$called tangency point$),$ and

b$)$ for an inclined upstream face having a slope of $3$:$3($ use

USBR approach with the equation given in the text notes up to

the tangency point $)$ on a milimetric paper after completing

the whole necessary calculations:

$P=20m,h_o=2m,q=20\frac{m^2}{s}$