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Course: Geometry 229+ > Unit 3

Lesson 6: Theorems concerning quadrilateral properties
Math Content
Geometry 229+
Congruence
Theorems concerning quadrilateral properties
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Prove parallelogram properties

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Problem

Consider this diagram of quadrilateral ABCD, which is not drawn to scale.
A Quadrilateral A B C D. A line connects from points A and C. Another line connects points B and D, intersecting in the middle of the rectangle. Side A B and Side D C are congruent. Side A D and side B C are congruent.
Which two statements must be true based on the information indicated by the diagram?
Choose 2 answers: