The accuracy of a curved line depends on the number of points used to define it. The number of points used depends on the accuracy required for the particular curve.
b. Bisecting. Bisecting is the geometric way of finding the center of a line or an angle. In the following subparagraphs, we will discuss the two procedures for bisecting a line and the procedure for bisecting an angle.
(1) Bisect a Line - First Method (figure 22 on the following page). Let's assume we are given a line (1-2, view A). Our problem is that we have to divide this line into two equal parts. To divide the line into two equal parts, perform the following steps:
Step 1. Construct an arc of radius R. Use point 1 as the center. R = any radius of greater length than 1/2 of line 1-2 (view B).
Step 2. Construct an arc of radius R. Use point 2 as the center (view C). Step 3. Define the intersection of the arcs as points 3 and 4 (view C). Step 4. Connect points 3 and 4 with a construction line (view D).
Step 5. Define point S where line 3-4 intersects line 1-2. Line 1-5 is equal to line 5-2
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