Angle Relationships Review

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a straight line crosses two others. They are equal in measure.

Front

If m<2 = 60 degrees and m<5 = (x + 25), what is the value of x?

Back

x = 35

Front

What is the relationship between vertical angles?

Back

Vertical angles are the angles opposite each other when two lines cross. They are always equal in measure.

Front

If Angle 1 = 3x - 4 and Angle 3 = 5x - 38, how do you find the measure of Angle 4?

Back

Set Angle 1 + Angle 3 = 180° (if they are supplementary) and solve for x, then substitute back to find Angle 4.

Front

What is the measure of Angle C if it is given as 116°?

Back

m∠C = 116°.

Front

Which angles are congruent?

Back

Congruent angles are angles that have the same measure.

Front

If Angle 5 is 60°, what is the measure of Angle 6 if it is NOT congruent to Angle 5?

Back

Angle 6 can be any measure other than 60°.

Front

What is the measure of ∠2 if it is given as 142°?

Back

m∠2 = 142°.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie on opposite sides of the transversal and inside the two lines. They are equal when the lines are parallel.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180°.