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Read the angle from the plumb bob string on the protractor. Now you have the hypotenuse and one angle. The plug in calculator will now give you the vertical leg of the triangle.
Do you have a hose long enough? Fill a hose at the pond level, and put a pressure gauge at the source level. Devide pressure by .434 that will give you head in feet.Dave
OK. I've been there. Without the instruments, how do you figure the angle I'm thinking there is a stick kinda thing, that a Forester can use, to gauge the height of a tree. Can't remember it's name or where I saw one described
To find the hight of the tree ; Measure the shadow length , measure your shadow length . Devide by your hight that gives you the ratio to devide the trees shadow to get its hight . Another way an older feller told me was to stand with you back to the tree spread your legs a bit , bend over enough to look at the tree through your legs . now move forward or back till you can see the top of the tree. Measure the distance from you to the tree . That will give you the hight of the tree.
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