## G.GCO.10 - Prove, and apply in mathematical and real-world contexts, theorems about parallelograms, including the following: a. opposite sides of a parallelogram are congruent; b. opposite angles of a parallelogram are congruent; c. diagonals of a parallelogram bisect each other; d. rectangles are parallelograms with congruent diagonals; e. a parallelograms is a rhombus if and only if the diagonals are perpendicular.

### Displaying 1 - 13 of 13 resources:

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### Math Example--Geometric Proofs--Example 1

Math Example--Geometric Proofs--Example 1

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 10

Math Example--Geometric Proofs--Example 10

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 11

Math Example--Geometric Proofs--Example 11

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 12

Math Example--Geometric Proofs--Example 12

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 13

Math Example--Geometric Proofs--Example 13

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 2

Math Example--Geometric Proofs--Example 2

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 3

Math Example--Geometric Proofs--Example 3

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 4

Math Example--Geometric Proofs--Example 4

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 5

Math Example--Geometric Proofs--Example 5

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 6

Math Example--Geometric Proofs--Example 6

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 7

Math Example--Geometric Proofs--Example 7

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 8

Math Example--Geometric Proofs--Example 8

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle

### Math Example--Geometric Proofs--Example 9

Math Example--Geometric Proofs--Example 9

This is part of a collection of math examples that focus on geometric proofs.

Parallel Lines and Definition of a Triangle