V changes at a rate of 2000 cc/min (cubic cm per minute); use this to solve for dh/dt :
(The question asks how the height changes at the exact moment the height is 50 cm, but this info is a red herring because the rate of change is constant.)
If the length of the short leg is "a" then the length of the long leg should be "2a" and since the point is on the x axis the point is (2a,0) because the y=0
