b) Place one end of the compass at point A and the other
Chapter 9, Problem 9.1.107(choose chapter or problem)
Use a straightedge and a compass to construct a triangle with sides of equal length (an equilateral triangle) by doing the following:
a) Use the straightedge to draw a line segment of any length and label the end points A and B (Fig. a).
b) Place one end of the compass at point A and the other end at point B and draw an arc as shown (Fig. b).
c) Now turn the compass around and draw another arc as shown. Label the point of intersection of the two arcs C (Fig. c).
d) Draw line segments AC and BC. This completes the construction of equilateral triangle ABC (Fig. d).
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