1.4 Pairs of Angles
Pairs of Angles Adjacent Angles- two angles that share a side and a vertex. Linear pair- a pair of adjacent angles who add up to be 180o
Practice Problems: Tell whether the angles are only adjacent, adjacent and form a linear pair, or not adjacent. AEB and BED
Practice Problem: Tell whether the angles are only adjacent, adjacent and form a linear pair, or not adjacent. AEB and BEC
Practice Problems: Tell whether the angles are only adjacent, adjacent and form a linear pair, or not adjacent. DEC and AEB
Other Types of Angles Complementary Angles- two angles who add up to be 90o Supplementary Angles- two angles who add up to be 180o
Practice Problems: Find the complement of F
Practice Problems:
Practice Problems:
Practice Problems: An angle is more than 3 times the measure of is complement. Find the measures of the angles. Check it out (Pg. 29, #3)
Practice Problems: Light passing through a fiber optic cable reflects off the walls of the cable in such a way that 1 ≅ 2, 1 and 3 are complementary, and 2 and 4 are complementary. If m1 = 47°, find m2, m3, and m4. Check it out (Pg. 30, #4)
Vertical Angles Vertical Angles- two nonadjacent angles formed by intersecting lines . (Across each other on an x) Vertical Angles are congruent
Practice Problems: Name the pairs of vertical angles.
Practice Problems: Find x and the measure of