All ACT Math Resources
Example Question #172 : Geometry
What is the value of in the triangle above? Round to the nearest hundredth.
Cannot be calculated
Begin by filling in the missing angle for your triangle. Since a triangle has a total of degrees, you know that the missing angle is:
Draw out the figure:
Now, to solve this, you will need some trigonometry. Use the Law of Sines to calculate the value:
Solving for , you get:
Rounding, this is .