First Semester Review II

Front

If two lines are cut by a transversal and have alternate interior angles which are congruent, what can be concluded?

Back

The corresponding angles are congruent, two lines are parallel, alternate exterior angles are congruent, all of these are true.

Front

What is the point on the perpendicular bisector of the segment with endpoints (-2, 5) and (-2, -7)?

Back

(4, -1)

Front

What is the point of concurrency called where the altitudes of a triangle intersect?

Back

Orthocenter

Front

What postulate can be used to prove that two triangles are congruent if two sides and the included angle are known?

Back

SAS (Side-Angle-Side) Postulate.

Front

What postulate can be used to prove that two triangles are congruent if all three sides are known?

Back

SSS (Side-Side-Side) Postulate.

Front

What is the definition of alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the two lines.

Front

What is the definition of a transversal?

Back

A line that intersects two or more lines at different points.

Front

What is the definition of the orthocenter in a triangle?

Back

The point where the three altitudes of a triangle intersect.

Front

What is the definition of the circumcenter in a triangle?

Back

The point where the perpendicular bisectors of the sides of a triangle intersect.

Front

What is the definition of the centroid in a triangle?

Back

The point where the three medians of a triangle intersect.