# Coordinate Axis With Perpendiculars Drawn To Form Similar Right Triangles

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Angle XOP=Θ and angle XOQ=90+Θ. From a point in the terminal side of each a perpendicular line is drawn to the x-axis. The right triangles AOB and OCD thus formed are similar, and have all their sides positive except OC

### Keywords

drawn, point, negative, positive, triangles, angles, perpendicular, Right Triangle, similar, trigonometry, 90, terminal side, theta, trig, coordinate axis with angle, x-axis, Θ### Galleries

Trigonometry: Triangles### Source

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