Lessson 26- SPA

Standard Position Angle: SPA

SinѲ= y/1 = y  (y/r)
CosѲ= x/r = x/1 = x
TanѲ= y/x = rise/run = slope

Solve  0° <  Ѳ  < 360°     SinѲ=  - 0.5641

Step 1: Draw SPA

Step 2: Use Calc  2nd sin -0.5641)

Step 3: Use symmetry to find answers