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Transcript
Lesson 5: Angle Relationships » Adjacent angles: two angles that lie in the same plane, have a common vertex and a common side, but no common interior points » Vertical angles: two nonadjacent angles formed by two intersecting lines » Linear pair: a pair of adjacent angles with non-common sides that are opposite rays » Complementary angles: two angles with measures that add up to 90 » Supplementary angles: two angels with measures that add up to 180 » Perpendicular ( ): lines, segments or rays that form right angles Adjacent angles M Vertical angles O L D A C B N D Linear pair E Complementary angles B A 72 18 C Supplementary angles Perpendicular lines R 40 140 S V T U A. Name two adjacent angles whose sum is less than 90. B. Name two acute vertical angles. Find the measures of two supplementary angles if the measure of one angle is 6 less than five times the measure of the other angle. A. Name an angle supplementary to BEC. B. Name a linear pair whose vertex is E. C. Name two acute vertical angles. Find the measures of two complementary angles if one angle measures six degrees less than five times the measure of the other. The supplement of A measures 140 degrees. What is the measure of the complement of A? ALGEBRA Find x and y so that KO and HM are perpendicular.