#1
Which of the following statements is true about parallel lines?
They have the same slope
ExplanationParallel lines have equal slopes.
#2
If two parallel lines are cut by a transversal, the corresponding angles are:
Equal
ExplanationCorresponding angles formed by a transversal and parallel lines are equal.
#3
What is the sum of interior angles in a triangle?
180 degrees
ExplanationThe sum of interior angles in a triangle is always 180 degrees.
#4
In a parallelogram, opposite angles are:
Congruent
ExplanationOpposite angles in a parallelogram are congruent.
#5
What is the alternate interior angle relationship between two parallel lines?
Equal
ExplanationAlternate interior angles in parallel lines are equal.
#6
If a pair of corresponding angles is 80 degrees, what is the measure of each angle in degrees?
40 degrees
ExplanationCorresponding angles are equal, so each angle is half of 80 degrees.
#7
In a triangle, the exterior angle is equal to the sum of:
Two interior angles
ExplanationThe exterior angle of a triangle is equal to the sum of its two non-adjacent interior angles.
#8
If a transversal intersects two parallel lines, and one angle is 120 degrees, what is the measure of its corresponding angle on the other parallel line?
90 degrees
ExplanationCorresponding angles in parallel lines cut by a transversal are supplementary, so the other angle is 180 - 120 = 60 degrees.
#9
What is the sum of angles in a trapezoid?
360 degrees
ExplanationThe sum of angles in a trapezoid is always 360 degrees.
#10
In a rhombus, opposite angles are:
Congruent
ExplanationOpposite angles in a rhombus are congruent.
#11
If two lines are perpendicular, what is the relationship between their slopes?
Negative reciprocals
ExplanationPerpendicular lines have slopes that are negative reciprocals of each other.
#12
What is the angle sum of a hexagon?
540 degrees
ExplanationThe sum of angles in a hexagon is always 540 degrees.