Which of the following are vertical angles? A. ∠1 and ∠2 B. ∠1 and ∠4 C. ∠2 and ∠4 D. ∠2 and ∠3

Which of the following is true about parallel lines? A. coplanar lines that do not intersect no matter how far they are extended B. two lines with a common point C. three or more lines that have a common point 

Which of the following form a linear pair? A. ∠1 and ∠2 B. ∠1 and ∠3 C. ∠2 and ∠4 D. None of these.

If ∠ABC = 90°, which of the following statements is TRUE? A. ∠ABC is an acute angle. B. ∠ABC is a right angle. C. ∠ABC is an obtuse angle. D. ∠ABC has no known classification.

Which of the following angles has measure less than 90° but greater than 0°? A. acute angle B. obtuse angle C. right angle D. straight angle

∠RLA and ∠ALF are complementary angles. If m∠ALF = 25°, then what is the measure of m∠RLA?

If m∠MAT = 135° and m∠HAE = 45° , then which of the following could describe the two angles? A. complementary angles B. vertical angles C. supplementary angles D. forms a right angle

Which of the following statements is TRUE? A. An angle is formed by two noncollinear rays. B. Two points determine an angle. C. An angle divides a plane into two distinct parts. D. Two distinct angles cannot share an interior point.

Which of the following is a measure of an acute angle? A. 170° B. 150° C. 90° D. 80°

What is the sum of the measures of supplementary angles? A. 45° B. 50° C. 90° D. 180°

Given the figures below, what can you conclude about the two angles? A. linear pairs B. congruent angles C. vertical angles D. perpendicular to each other

All of the following are measures of an obtuse angle EXCEPT: A. 95° B. 110° C. 120° D. 190°