1. Which of the following statement is true? a. Not all vertical angles are congruent. b. Vertical angles are congruent. C. Sometimes, vertical angles are congruent d. Vertical angles are not congruent. 2. If the sum of the measures of two angles is 180°, then they are called a: Complementary angles b. Obtuse angles c. Supplementary angles d. Straight angles 3. If the sum of the measures of two angles is 90°, then they are called a. Complementary angles b. Obtuse angles c. Supplementary angles d. Vertical angles 4. A pair adjacent angles formed by two interesting lines is called a. Vertical angles b. Obtuse angles c. Right angles d. Linear pair
Answer:
1.b-vertical angles are congruent
2.a-complementary angel
3.a-complementary angel
4.d-linear pair
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