Basic Geometric Constructions

Which is a compass?

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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

Name the construction.

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

What does the word BISECT mean?

• To cut something into more than five pieces.
• It is a plane with two sets of wings.
• A shape that has three sides. 
• To cut something into two congruent pieces or in half.

When bisecting an angle, the straightedge should be used to:

• Mark the point M
• Measure the angle AOB
• Copy the angle with an arc
• Connect point M and vertex O

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

• True
• False

Which one is the correct construction for a perpendicular bisector?

• 1
• 2
• 3
• 4

What geometric construction is shown in the diagram below?

• an angle bisector
• a line parallel to a given line
• an angle congruent to a given angle
• a perpendicular bisector of a segment

A line, segment, or ray that passes through the midpoint of a side that is creates a 90 degree angle with that side.

• Perpendicular bisector
• Angle bisector
• Median
• Altitude

How is your day going? Select all that apply.

• AMAZING

• GREAT

• UNBELIEVABLY GOOD

• BEST DAY EVER