geometry
posted by Pharoe on .
you want to estimate the radius of the towns circular water tank. you stand at point c, about 6 feet from the circular tank. the distance from you to a point of tangency on the tank is about 10 feet. estimate the radius of the tank

Did you mean spherical water tank?
or
water tank is a cylinder with a circular base?
"about 6 feet from the circular tank"  6 feet to the closest point of the tank?
or
" the distance from you to a point of tangency on the tank is about 10 feet"
 if it is a sherical water tank, then there are two tangents, one horizontal and one which is slanted.
????