MACHINE SHOP CALCULATION - OD1640 - LESSON 2/TASK 3
The above is known as the "law of sines," and should be interpreted: "Any
side divided by the sine of the angle opposite is equal to any other side
divided by the sine of the angle opposite it." This law, and the laws and
formulas in the following paragraphs, are useful in solving oblique
Solve the triangle of figure 27, view B (on page 83) for angle C and side X
using the Law of sines.
Angle C + 42,, + 75,, = 180,,, angle C + 117 = 180,,; therefore, angle C = 63,,.