MACHINE SHOP CALCULATION - OD1640 - LESSON 2/TASK 3
EXAMPLE
Solve the triangle in figure 27, view C (on page 83), for angle B using the
Law of sines.
To find angle B interpolate as follows:
From this the desired angle is
of the way from 74,, 35' to 74,, 36';
Therefore, angle B is:
74,, 36' 53"
13.
Law of Cosines
a.
(1) From figure 27, view A, triangle 1, AD = c - DB.
AD must be squared
for use in this equation.
b2 = AD2 + h2
86
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