Problem 176 of 7
Detect the invalid construction step in To construct a line parallel to a given line through an external point, the student draws a transversal, then attempts to copy an angle. However, the compass opening used to measure the angle's width on the original line is not transferred accurately to the new intersection.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
distinguish measurement-by-ruler from formal construction and catch wrong arc centers.
Hidden until you reveal it.
Attempt must contain one identifiable formal construction error.
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Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the intended construction.
2. Compare each step to the formal construction requirements.
3. Name the step that breaks the required equal-distance or tool condition.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Vague statements that the whole construction is wrong.