Question

Standing 8 feet from a puddle of water on the ground Gretchen whose eye height is 5 feet 2 inches, can see the reflection of the top of a flagpole. The puddle is 20 feet from the flagople. How tall is the flagpole

Answer 1

since the angles at the puddle are equal, we have similar triangles, so the height h of the flagpole in feet is given by

h/20 = (31/6)/8

Answer 2

Ok I got 12 feet 11 in