G-CO.3.11

Prove theorems about parallelograms; use theorems about parallelograms to solve problems. Theorems include: opposite sides are congruent, opposite angles are congruent, the diagonals of a parallelogram bisect each other, and conversely, rectangles are parallelograms with congruent diagonals.

Assessment Banner - Assessment Questions Now Available!
Formative Assessments
Formative Assessments
Virtual/Hands-on Manipulatives
Virtual/Hands-on Manipulatives
Assessment Questions
Assessment Questions
Videos of Expert Instruction
Videos of Expert Instruction
Use Real Link and Title
Use Real Link and Title
Use Real Link and Title
Math Literature
Math Literature