09.05.2013 Views

Geometry Notes #: Section 6.6: Trapezoids and Kites ... - sibelcaba

Geometry Notes #: Section 6.6: Trapezoids and Kites ... - sibelcaba

Geometry Notes #: Section 6.6: Trapezoids and Kites ... - sibelcaba

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

<strong>Geometry</strong> <strong>Notes</strong> #:<br />

<strong>Section</strong> <strong>6.6</strong>: <strong>Trapezoids</strong> <strong>and</strong> <strong>Kites</strong> Objective:<br />

What is a Trapezoid?<br />

Theorem 6-19: If a<br />

quadrilateral is an isosceles<br />

trapezoid, then each pair of base<br />

angles is congruent.<br />

Theorem 6-20: If a<br />

quadrilateral is an isosceles<br />

trapezoid, then its diagonals are<br />

congruent.<br />

Isosceles Trapezoid:<br />

Legs are congruent<br />

Trapezoid Midsegment Theorem: If a<br />

quadrilateral is a trapezoid, then<br />

1. The midsegment is parallel to the bases<br />

2. The length of the midsegment is half the<br />

sum of the lengths of the bases.<br />

Kite<br />

Theorem 6-22: If a<br />

quadrilateral is a kite, then<br />

its diagonals are<br />

perpendicular.


<strong>Geometry</strong> <strong>Notes</strong> #:<br />

<strong>Section</strong> <strong>6.6</strong>: <strong>Trapezoids</strong> <strong>and</strong> <strong>Kites</strong> Objective:<br />

Example 1)<br />

a) In the diagram, PQRS is an isosceles<br />

trapezoid <strong>and</strong> =106. What are<br />

the measures of the angles P, Q<br />

<strong>and</strong> S?<br />

b) If PQRS were not an isosceles<br />

trapezoid, would angles Q <strong>and</strong> R<br />

be supplementary?<br />

Example 2) What are the values of x <strong>and</strong> y in the<br />

isosceles triangle below if<br />

Example 3) is the midsegment of trapezoid<br />

WXYZ. What is x?<br />

Example 4) Quadrilateral KLMN is a kite. What are ?<br />

CONCEPT SUMMARY

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!