Perpendicular lines are drawn by fitting the hypothenuse of the triangle to the T-square at an angle, or another triangle. Then, turn the triangle so that the hypothenuse is perpendicular to the line.
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Perpendicular Lines - MathBitsNotebook(Geo)
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perpendicular lines clipart - Clip Art Library
The Set Square
Keyword: T-square
perpendicular lines clipart - Clip Art Library
Drawing a line perpendicular to a randomly oriented plane
Keyword: Line Drawing
Keyword: line
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