Basic Constructions & Vertical Angles

What is this?

• Compass

• Circle creator

• Pencil swingy-thing

• Arc maker

Answer explanation

The correct choice is 'Compass' because a compass is a tool used for drawing circles and arcs by fixing one end and rotating the other to create precise shapes.

Name the construction.

• Angle bisector
• Perpendicular line to a point not on a line
• Angle median
• Perpendicular bisector of a line segment

Name the construction.

• Corresponding angles
• Parallel line to a point not on the line
• Perpendicular line to a point not on the line
• Angle bisector

What type of construction do you see?

• midpoint
• angle bisector
• perpendicular bisector
• altitude

Which one is the correct construction for a perpendicular bisector?

• 1
• 2
• 3
• 4

The given diagram is what kind of construction?

• Perpendicular bisector

• Congruent angles

• Angle bisector

• Congruent line segments

Marsha is using a straightedge and compass to do the construction shown. Which best describes the construction Marsha is doing?

• a line through P parallel to line l
• a line through P intersecting line l
• a line through P congruent to line l
• a line through P perpendicular to line l

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

Answer explanation

The compass should be used to measure the length of segment AB when copying it using a straight edge and compass.

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

Name the construction.

• midpoint

• perpendicular through a point on the line

• perpendicular through a point NOT on the line

• Circumcenter of a right triangle