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Properties of Trapezoids and Kites

Properties of Trapezoids and Kites. Definitions. Trapezoid: A Quadrilateral with exactly one pair of parallel sides. The parallel sides are the bases . The nonparallel sides are the legs .

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Properties of Trapezoids and Kites

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  1. Properties of Trapezoids and Kites www.assignmentpoint.com

  2. Definitions • Trapezoid: A Quadrilateral with exactly one pair of parallel sides. • The parallel sides are the bases. • The nonparallel sides are the legs. • A Trapezoid has two pairs of base angles. The first pair are the angles that are adjacent to the bottom base. The second pair are the angles adjacent to the top base. www.assignmentpoint.com

  3. Example • Points A, B, C and D are the vertices of a quadrilateral. Determine whether ABCD is a trapezoid www.assignmentpoint.com

  4. Check For Progress • Points A, B, C and D are the vertices of a quadrilateral. Determine whether ABCD is a trapezoid www.assignmentpoint.com

  5. Definitions • Isosceles Trapezoid: A trapezoid in which the legs are congruent to one another. • Each pair of base angles is congruent. • The diagonals are congruent to one another. www.assignmentpoint.com

  6. Example • Find the measure of all angles. www.assignmentpoint.com

  7. Check For Progress • Find the measure of all angles. www.assignmentpoint.com

  8. Definitions • Midsegment Theorem for Trapezoids: The midsegment of a trapezoid is parallel to each base and its length is one half the sum of the lengths of the bases. www.assignmentpoint.com

  9. Example • Find the length of the midsegment of the trapezoid. www.assignmentpoint.com

  10. Check For Progress • Find the length of the midsegment of the trapezoid. www.assignmentpoint.com

  11. Definitions • Kite: A quadrilateral that has two pairs of consecutive congruent sides, but opposite sides are not congruent. • Diagonals are perpendicular to one another. • Exactly one pair of opposite angles are congruent to one another. www.assignmentpoint.com

  12. Example • KITE is a kite. Find the measure of angle K. www.assignmentpoint.com

  13. Example • Find the side lengths of the kite. Write the lengths in simplest radical form. www.assignmentpoint.com

  14. Check For Progress • Find the side lengths of the kite. Write the lengths in simplest radical form. www.assignmentpoint.com

  15. Homework • Workbook Pg. 157 • #1-16 (all) www.assignmentpoint.com

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