### Home > INT2 > Chapter 7 > Lesson 7.1.1 > Problem 7-10

7-10.

What else can you prove about parallelograms? Prove that the diagonals of a parallelogram bisect each other. For example, assuming that quadrilateral at right is a parallelogram, prove that

*and*

*. Fill in the missing statements and reasons in the flowchart proof below. Then record your theorem in your Theorem Graphic Organizer.*

Start by proving

What reason justifies that and

*?*