08.7 - Compass Constructions

"bisect" means ...

• cut at right angle

• an insect with 2 heads

• divide into 2 equal parts

• intersect

"equidistant" means ...

• far away equilateral triangle

• with 2 equal sides

• at the same distance

• you're in for another headache

The perpendicular bisector of a line segment is ...

• a line segment through the midpoint of this line segment

• the straight line through the midpoint of this line segment and perpendicular to it

• the straight line that bisects the line segment into 2 equal angles

You want to construct the perpendicular To L through A. For next move, ...

• You need to change the span of your compass

• You need to keep the same span of your compass

• You need to use the grid lines on your paper

This is the construction of...

• the angle bisector of ABC

• the perpendicular bisector of BC

• the angle bisector of BAC

• the line through B perpendicular to AC

All the points on an angle bisector...

• sit on this angle

• are at the same distance from the 2 sides of this angle

• are at the same distance from the vertex of the angle an any side of the angle

This is your first move when you construct the line through A perpendicular to L

• True

• False

This is the construction of...

• the angle bisector of AB

• the perpendicular bisector of AB

• nothing special, as the radii of the circles should be equal to AB

• the line through A perpendicular to AB

All the points on the perpendicular bisector of a line segment...

• sit on this line segment

• are at the same distance from the 2 ends of this line segment

• are on the same circle