constructions

What is this?

• Compass
• Circle creator
• Pencil swingy-thing
• Arc maker

An angle that measures exactly 90°

• Acute Angle
• Right Angle
• Triangle
• Straight Angle

Perfectly flat surface that extends forever in all directions.

• plane
• line
• square
• point

Euclid

• American mathematician - Father of Algebra
• Greek mathematician - Father of Calculus
• Greek mathematician - Father of Geometry
• Greek scientist - Father of Chemistry

To construct an equilateral triangle, all you need is a compass and a straightedge.

• True
• False

The drawing shows a compass and straight edge construction of...what?

• the bisector of a given angle

• a perpendicular to a given line at a point on the line

• a perpendicular to a given line from a point NOT on the line

• an angle congruent to a given angle

The given diagram is what kind of construction?

• Perpendicular bisector

• Congruent angles

• Angle bisector

• Congruent line segments

When copying line segment AB using a straight edge and a compass, the compass should be used to:

• Draw an arc above point A

• Measure the length of segment AB

• Draw an arc between point A and point B

• Measure half the length of line segment AB

What is being constructed in the figure?

• the perpendicular bisector of line m

• the line perpendicular to line m through a point on the line

• the line parallel to line m through a point NOT on the line

• an angle that has line m as its bisector

When constructing a line parallel to a given line, you will be

• copying a segment

• bisecting a segment

• copying an angle

• constructing a perpendicular