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NAME 6-6 DATE PERIOD Trapezoids and Kites What You’ll Learn Skim the lesson. Write two things you already know about trapezoids and kites. 1. ____________________________________________________ ____________________________________________________ ____________________________________________________ 2. ____________________________________________________ ____________________________________________________ ____________________________________________________ ____________________________________________________ Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. Active Vocabulary New Vocabulary Match the term with its definition by drawing a line to connect the two. base angles bases isosceles trapezoid kite the segment that connects the midpoints of the legs of the trapezoid a quadrilateral with exactly two pairs of consecutive congruent sides the nonparallel sides of a trapezoid the parallel sides of a trapezoid legs of a trapezoid the angles formed by the base and one of the legs of a trapezoid midsegment of a trapezoid a quadrilateral with exactly one pair of parallel sides trapezoid Chapter 6 a trapezoid with congruent legs 103 Glencoe Geometry Lesson 6-6 ____________________________________________________ NAME DATE PERIOD Lesson 6-6 (continued) Details Main Idea " Properties of Trapezoids pp. 435–438 # Complete the flow proof below. Given: ABCD is an isosceles trapezoid −− −−− with bases AB and CD. Prove: ∠BDC ACD % $ Given Reflexive Prop. Properties of Kites pp. 438–439 Diagonals are cong. Def. isoc. trap. SSS CPCTC −−− Solve for x if MN is a midsegment of trapezoid RSTU. . 14.4 4 16.5 / x= 6 x 5 Helping You Remember A good way to remember a new geometric theorem is to relate it to one you already know. Name and state in words a theorem about triangles that is similar to the theorem in this lesson about the median of a trapezoid. ————————————————————————————————————————— ————————————————————————————————————————— ————————————————————————————————————————— Chapter 6 104 Glencoe Geometry Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc. 3
