A reflection axis is a fold line that pairs the entire boundary with itself. Since the parallel bases have different lengths, a useful candidate must preserve each base while exchanging its endpoints; checking the line through the base midpoints makes that pairing visible and also tests the two legs.
Inside Gozunta
Turn the preview into practice.
More than a preview
Gozunta lets you study this problem—and more than 10,000 others.
Create targeted learning sessions, use hints, check your answer, read the walkthrough, watch the video, print the work, and track your progress.
