The first step in the construction of a line perpendicular to line AB and passing through an external point m is:
a. place the compass needle on m and keeping the compass width the same, draw two arcs that intersect the line AB
<h3>What are the steps to construct a perpendicular line from an external point?</h3>
To construct a perpendicular line, a compass and a scale are used.
Consider a line AB and an external point M.
Step 1:
Place the compass needle on M and keeping the compass width the same, draw two arcs that intersect the line AB.
Step 2:
Name the two intersecting points on line AB as X and Y.
Draw the arcs from these two points to the opposite side of point M with the same compass width.
Step 3:
Name the intersecting point of two arcs as N.
Draw a line connecting the two points M and N using scale.
Step 4:
Using a protractor, measure the angle of the line MN with the line AB.
The angle must show 90°.
Thus, the line MN perpendicular to line AB and passing through an external point M is constructed.
Learn more about the construction of a perpendicular line here:
brainly.com/question/27164219
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