PRIN. OF DRAFTING AND SHOP DRAWINGS - OD1641 - LESSON 1/TASK 2
FIGURE 23.
BISECTING A LINE -
SECOND METHOD.
Step 1.
Align the T-square with line 1-2 and, using a 45-45-90, triangle as a
guide, construct a line 45, to line 1-2 through point 1 (figure 23, view B)
Step 2.
Repeat step 1, this time constructing the 45, line through point 2 (view
C).
Step 3.
Define the intersection of the construction line as point 3 (view C).
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