1.) In geometry, any line in a plane that touches a circle in one, and only one, point.
2.) In trignometry, the ratio of the length on the opposite side of an angle to the length of the adjacent side of an angle.
1.) Point T is tangent to the circle.
2.) tan60ºӨ = the square root of 3
tan45ºӨ = 1
tan30ºӨ = the square root of 3 divided by 3