Perpendicular and Angle Bisectors

Front

What is a line, segment, or ray that passes through the midpoint of a side and creates a 90 degree angle with that side?

Back

Perpendicular bisector

Front

What is a line, segment, or ray that divides an angle in half?

Back

Angle bisector

Front

What is the term for a segment that connects the midpoints of two sides of a triangle?

Back

Midsegment

Front

What do you call angles that are opposite each other when two lines cross?

Back

Vertical angles

Front

If two lines are perpendicular, what is the measure of the angles they form?

Back

90 degrees

Front

What is the relationship between the angles formed by a perpendicular bisector and the segments it divides?

Back

The angles are congruent.

Front

In a triangle, what is the point where the three angle bisectors intersect called?

Back

Incenter

Front

What is the term for a line segment that connects a vertex of a triangle to the midpoint of the opposite side?

Back

Median

Front

If a triangle has sides of lengths 3, 4, and 5, what type of triangle is it?

Back

Right triangle

Front

What is the property of the angles formed by a transversal intersecting two parallel lines?

Back

Alternate interior angles are congruent.