Geometry First Semester Test

Front

What is the relationship between angles A and B?

Back

Alternate interior angles are angles that are on opposite sides of the transversal and inside the two lines.

Front

If angle 6 is 25 degrees, how many degrees is angle 7?

Back

Angle 7 is 155 degrees, as it is the exterior angle formed by angle 6 and the adjacent angle.

Front

State if the triangles are congruent or not. If they are, state how you know.

Back

Yes - by SAS (Side-Angle-Side) congruence criterion.

Front

Classify this triangle by sides:

Back

Isosceles triangle has at least two sides of equal length.

Front

Angle ABC measures 34°; what is the measure of angle CBD?

Back

Angle CBD measures 34°, as it is equal to angle ABC in this case.

Front

What are corresponding angles?

Back

Corresponding angles are angles that are in the same position on two parallel lines in relation to a transversal.

Front

What is the SSS congruence criterion?

Back

SSS (Side-Side-Side) states that if three sides of one triangle are equal to three sides of another triangle, the triangles are congruent.

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three angles are less than 90°.

Front

What is the definition of a scalene triangle?

Back

A scalene triangle is a triangle with all sides of different lengths.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal; they are formed by two intersecting lines.