This site uses flash for videos. If you're having trouble enabling it, click on the information icon in the address bar to change your settings to allow Flash.

Cosine Law (Unknown Angle - SSS) $\cos A=\frac{b^2+c^2-a^2}{2bc}$

  1. 1
    Find $\angle C$.
    ( trigonometry / trig )figure
  2. 2
    Find $\angle M$.figure
  3. 3
    Find $\angle P$.figure
  4. 4
    Solve the triangle.figure
  5. 5
    Solve the triangle.figure

$$e=mc^2$$