Coordinate Axis With Perpendiculars Drawn To Form Similar Right Triangles From Positive and Negative Theta, Θ
Angle XOP=Θ and angle XOQ=- Θ. From a point in the terminal side of each a perpendicular line is drawn to the x-axis. The right triangles OAB and OAC thus formed are similar, and have all their sides positive except AC, which is negative.
Keywordsdrawn, point, negative, positive, triangles, angles, perpendicular, Right Triangle, similar, trigonometry, 90, terminal side, theta, trig, coordinate axis with angle, x-axis, Θ