G-CO.11 (Mathematics)
            Standard Identifier:
            
                G-CO.11
            
        
        
            Content Area:
            
                Mathematics
            
        
        
            Grade Range:
            
                8–12
            
        
            
                Domain:
                
                    Congruence
                
            
                    
                Discipline:
                
                    Geometry
                
            
                    
                Conceptual Category:
                
                    Geometry
                
            
        
        Cluster:
Prove geometric theorems. [Focus on validity of underlying reasoning while using variety of ways of writing proofs.]
Standard:
Prove theorems about parallelograms. 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.
    Prove geometric theorems. [Focus on validity of underlying reasoning while using variety of ways of writing proofs.]
Standard:
Prove theorems about parallelograms. 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.
                Questions: Curriculum Frameworks and Instructional Resources Division |
                CFIRD@cde.ca.gov | 916-319-0881