Constructing Perpendicular Lines

Geometric Constructions using a compass and a straightedge.
1. Draw line AB.[br]2. Put the compass point on A so that the compass measurement is over halfway to point B. Draw a long arc above and below the line.[br]3. Using the same compass measurement as step 2, place the compass on B and draw a long arc above and below the line so that it intersects the arc in step 2 at C and D.[br]4. Draw line CD.[br]5. Line AB [math]\bot[/math]line CD.
Construct two perpendicular lines AB and CD using a compass and a straightedge.
Which previously learned construction has similar steps to the construction of two perpendicular lines? What information do you know about this figure?
Close
– Laurie B Harrell, Claire Verti

Information: Constructing Perpendicular Lines