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Transcript
Tr TRAPEZOID A quadrilateral with exactly one pair of parallel sides PARTS OF A TRAPEZOID Base Leg Base Angle Leg Base Base Angle ISOSCELES TRAPEZOID A trapezoid with congruent legs and congruent base angles. THEOREM 6-19 If a quadrilateral is an isosceles trapezoid, then each par of base angles is congruent. TURN TO PAGE 390 Look at Problems 1 and 2 Try the Got It Problems for those examples. THEOREM 6-20 If a quadrilateral is an isosceles trapezoid, then its diagonals are congruent. MIDSEGMENT OF A TRAPEZOID The segment that joins the midpoints of the legs. THEOREM 6-21 If a quadrilateral is a trapezoid, then 1.The midsegment is parallel to the bases 2.The length of the midsegment is half the sum of the lengths of the bases. TURN TO PAGE 391… Look at Problem 1 Try the Got It Problems for that example. KITE Quadrilateral with two pairs of consecutive sides congruent and no opposite sides congruent. THEOREM 6-22 If a quadrilateral is a kite, then its diagonals are perpendicular. TURN TO PAGE 393… Look at Problem 4 Try the Got It for that problem.
