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Unformatted text preview: 510 Quadrilaterals, Medians and Bisectors
A) Quadrilateral
a. Let A, B, C and D be four coplanar points. If no three of these points are collinear, and the segments and intersect only at their end points, then the union of the four segments is called a quadrilateral Examples i. A C A A B B D D A D B A C D C D B B A D C E B C C b. B) Definitions a. Sides i. The four segments
b. Vertices i. The points A, B, C and D Angles
i. c. The angles and d. Diagonals
i. The segments and e. Perimeter i. The sum of the lengths of the sides f. Rectangle i. A quadrilateral in which all four angles are right angles g. Square i. A rectangle in which all four sides are congruent h. Median of a triangle i. A segment whose endpoints are a vertex of the triangle and the midpoint of the opposite side 1. How many does each triangle have? i. Angle bisector of a triangle i. A segment is an angle bisector of a triangle if 1. it lies in the ray which bisects an angle of the triangle 2. its end points are the vertex of this angle and a point of the opposite side ii. How many does each triangle have? ...
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This note was uploaded on 05/16/2011 for the course ALGEBRA 098 taught by Professor Johnson during the Spring '09 term at Grand Valley State.
 Spring '09
 Johnson
 Algebra

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