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Unformatted text preview: 9-6 Rhombus, Rectangle and Square
A) Rhombus a. A parallelogram all of whose sides are congruent B) Rectangle a. A parallelogram all of whose angles are right angles C) Square a. A Rectangle all of whose sides are congruent D)Theorem 9-23 a. If a parallelogram has one right angle, then it has four right angles and the parallelogram is a rectangle E) Theorem 9-24 a. In a rhombus, the diagonals are perpendicular to one another F) Theorem 9-25 a. If the diagonals of a quadrilateral bisect each other and are perpendicular then the quadrilateral is a rhombus Example: Which of the following conditions are sufficient to prove that a quadrilateral is a rectangle? 1) Its diagonals are congruent? 2) Two pairs of opposite sides are congruent. 3) It has three right angles? 4) Its diagonals bisect each other? ...
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- Spring '09