IXL - Identify medians, altitudes, angle bisectors, and perpendicular bisectors (Geometry practice)

∠

is a right angle and

≅

Which term describes

angle bisector

altitude

median

perpendicular bisector

ref_doc_title.

Learn with an example

question

Look at the diagram.

30°

Which term describes

angle bisector

altitude

perpendicular bisector

median

key idea

A median of a triangle is a segment connecting a vertex to the midpoint of its opposite side.

An altitude of a triangle is a segment from a vertex to the line containing its opposite side, and is perpendicular to that line.

An angle bisector divides an angle into two congruent angles.

A perpendicular bisector splits a segment into two congruent segments and is perpendicular to that segment.

solution

Look at the diagram.

30°

∠

30°

bisects

∠

Therefore,

is an angle bisector.

Also, since there is not enough information to know whether

bisects

or whether

is perpendicular to

you cannot conclude that

is a median, perpendicular bisector, or altitude.

Looking for more? Try these:

Lesson: Perpendicular bisectors

Lesson: Angle bisectors

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Work it out

Not feeling ready yet? These can help:

B.9Perpendicular Bisector Theorem

C.6Angle bisectors

Lesson: Perpendicular bisectors

Lesson: Angle bisectors

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