Angles
Random (Constructions)
Perpendicular Lines
Line Segments
100

This is the most precise name for 2 quadrilaterals that have all equal angles.

What is a rectangle and square?

100
The tool used to make circles and arcs.
What is a compass?
100
A line that divides another line in half.
What is a perpendicular bisector?
100

If two line segments have the same length, we can say they are _

What are congruent line segments?

200

How can you construct a right angle?

Drawing a perpendicular line.

200
Two lines that meet at a right angle.
What are perpendicular lines?
200
Where does a perpendicular bisector cross a line segment?
At its midpoint.
200

The first step to drawing a segment bisector is...

Place the needle at one end of the line, and the pencil more than halfway.

300

This divides an ANGLE into two equal parts

What is an angle bisector?

300
Two lines that never intersect.
What are parallel lines?
300
How far must the compass extend to construct a perpendicular bisector?
More than half way.
300

Where do you draw the circles for a segment bisector?

On the left and right ends of the segment.

400

What is the exact definition of an angle?

2 rays that share an endpoint.

400

How many straight lines should be drawn to construct parallel lines?

3

400
What do you need to find a perpendicular line of a given line?
A point on the line and a point where you want the line to be.
400

What is the difference between a RAY and a LINE SEGMENT?

A line segment is a set of all points on a line between 2 endpoints. o----o

A ray is a set of all point son a line with 1 endpoint that extends in the other direction infinitely ----->

500

Explain the steps of an angle bisector construction...

Make a circle from the vertex that intersects both rays. From each point, make an circle using the same compass width (same radius), then connect the vertex to the "X" with a straightedge.

500

Generally explain how to construct a line parallel to a point not on the line.

Construct a perp. bisector to the 1st line (using 3 circles). Then another perp. bisector one to the 2nd line (drawing two more circles). Finally, make a line through the intersection points.

500

Explain the steps of constructing a perpendicular bisector.

From each endpoint, the compass should measure more than halfway between them, make a circle on each endpoint of the segment, draw the intersection from the points.

500

Why do we use congruent circles in our constructions?

Because congruent circles have the congruent radii which allows us to create congruent segments.

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