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Topic: Geometry Proof-- Need Help
Replies: 3   Last Post: May 5, 2006 11:01 PM

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JDude

Posts: 1
From: Buffalo
Registered: 4/4/06
Geometry Proof-- Need Help
Posted: Apr 4, 2006 10:30 PM
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I am weeks behind my work due to an illness, and I have no idea what I'm doing. Any help is appreciated. Thanks.

1. Given quadrilateral PQRS with vertices P (-2,3) Q (1,0) R (7,6) and S (0,5) prove that PQRS is a trapezoid.

2. Prove, using coordinate geometry, that the diagonals of isosceles trapezoid FISH with vertices F (2a, b) I (5a, b) S (7a,0) and H (0,0) are congruent

4. Given: Parallelogram ABCD
Line CE is perpendicular to Line AB
Line CF is perpendicular to Line AD
Prove: Triangle DCF ~ Triangle BCE

5. Given: Triangle ABC is isosceles with base Line AC
Line BD bisects angle ABC
Prove: Triangle ADB is congruent to Triangle CDB

6. Given: R is the midpoint of Line QS
QS bisects Line PT
Prove: Line PQ is congruent to Line TS

7. Given: Triangle BAT, line CBTD and Line AB are perpendicular to CD

Write an indirect proof to show that line AT is not perpendicular to Line CD



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