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Transcript
Notes – Lesson 6.5 Geometry Name __________________________________ Isosceles Trapezoid The parallel sides of a trapezoid are its bases. The nonparallel sides are its legs. Two angles that share a vase of a trapezoid are base angles of the trapezoid. Theorem: The base angles of an isosceles trapezoid are __________________________. Consecutive angles are ________________________________.m Examples. 1. 1 ________ 2. 2 _______ 1 ________ 3. 2 _______ 1 ________ 4. Half of a spider’s web is show to the right formed by layers of congruent isosceles trapezoids. Find the measures of the angles in ABDC. A _________ B ________ C ___________ D ___________ 5. 6. Theorem. The diagonals of an isosceles trapezoid are __________________________. Example. AC = 10x – 50 BD = 2x + 100 Solve for x. 7. 2 _______ Kites Theorem: The diagonals of a kite are __________________________ and _________________ the angles. Examples. 1. 1 ________ 4. 2. 2 _______ 1 ________ 5. 3. 2 _______ 1 ________ 2 _______ 3 ______ 6.