Question

3 practice 3 (from unit 1, lesson 6) what is the first step when constructing a line through point c parallel to the line ab. c a b a construct two circles centered at a with radius ab. b construct a circle centered at b with radius ab. c construct a line through c perpendicular to ab. d construct a line through b perpendicular to ab.

Explanation:

To construct a line parallel to a given line through an external point, the first step is to construct a perpendicular line from the external point to the given line. This provides a reference for creating the parallel line.

Answer:

C. Construct a line through C perpendicular to AB.