Problem preview
G-CO.11 Warmup M2-035-A14-V04

Prove parallelogram theorems and their converses, including diagonal and rectangle results.

Complete a parallelogram proof by choosing the missing converse theorem

Problem

In quadrilateral \(EFGH\), opposite sides \(EF\) and \(GH\) are \(\text{both}~\text{parallel}~\text{and}~\text{congruent}\). Name the converse theorem that turns this \(\text{single}~\text{paired}~\text{condition}\) into the conclusion that \(EFGH\) is a parallelogram.

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Four variants of this problem type
Curriculum context
Course
Math II
Standard
G-CO.11
Category
Geometry
Domain
Congruence
Objective
Prove parallelogram theorems and their converses, including diagonal and rectangle results.
Problem type
Complete a parallelogram proof by choosing the missing converse theorem