Angle Bisectors and Perpendicular Bisectors

What is this?

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

Tags

CCSS.HSG.CO.D.12

What do you call the common endpoint of two rays? 

• Angle
• Segment
• Ray
• Vertex 

Tags

CCSS.4.G.A.1

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.

Tags

CCSS.RI.11-12.4

CCSS.RI.9-10.4

CCSS.RL.11-12.4

CCSS.RL.8.4

CCSS.RL.9-10.4

Which image shows the construction of a perpendicular bisector?

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Tags

CCSS.HSG.CO.C.9

Which of the following shows the construction of an angle bisector?

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Tags

CCSS.HSG.CO.C.9

Which of the following constructions is illustrated?

• An angle is congruent to a given angle
• The bisector of a given angle
• The bisector of a given segment
• The perpendicular bisector of a given segment.

Tags

CCSS.HSG.CO.C.9

Nate is constructing angle bisector to angle ABC.  Where did he position his compass to create the two arcs that intersect at the interior of the angle?

• He fixed his compass on B and drew both arcs.
• He fixed his compass on points A and C.
• He fixed his compass on points D and E.
• He fixed his compass on points B and E.

Tags

CCSS.HSG.CO.C.9

Eric was attempting to construct a perpendicular bisector to the segment AB with a compass and straight edge. Which of the below statements explains what Eric may have done wrong?

• Eric should have started by putting the compass needle point at the midpoint of the segment AB.

• On the second step, Eric should have placed the compass needle point where the first arc intersected the segment AB.

• Erick just needed to open the compass more to create arcs that have a radius of more than half the length of the segment AB.

• Erick didn’t do anything wrong he just needs to connect the opposite endpoints of each arc to finish the construction.

Tags

CCSS.HSG.CO.C.9

Which one is the correct construction for a perpendicular bisector?

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• 2

• 3

• 4

Tags

CCSS.HSG.CO.C.9

What must be true?

• 1

• 2

• 3

• 4

Tags

CCSS.7.G.B.5