Derive: p=dgh. plz help me to solve this answer. answer correctly.

Here,
P=w/a
w=m × g and m=d × v
Or, p= (d × v × g)/a
v=a × h
Or, p= (d × a × h × g)/a
Cancel a and a
Therefore, p= d × h × g

Do you have an a b c d ? ? respond ; )