Question

geometry mod 1 test a1 25 - 26
amy is bisecting a line segment. what is the missing step?

1. place the compass at one end of line segment.
2. adjust the compass to slightly longer than half the line segment length.
3. draw arcs above and below the segment.

4.

1. place ruler where the arcs cross, and draw the line segment.

place a point on each arc.
keeping the same compass width, draw arcs from other end of segment.
adjusting the compass to a slightly longer width, draw arcs from the other end of the segment.
adjusting the compass to a slightly shorter width, draw arcs from the other end of the segment.

Explanation:

When bisecting a line - segment with a compass and straight - edge, after drawing arcs from one end with a certain compass width, the next step is to keep the same compass width and draw arcs from the other end of the segment. This creates two sets of intersection points that are used to draw the bisecting line.

Answer:

Keeping the same compass width, draw arcs from other end of segment.