Properties of Parallelograms

Use the distance/length tool to find the length of each side. What is the relationship between opposite side lengths? Drag some of the vertices to see if this is always true.

Use the angle tool to find the measure of each interior angle. a. What is the relationship between opposite angles? b. What is the relationship between consecutive (angles that share a side) angles? Drag some of the vertices to see if this is always true.

Use the segment tool to create 2 diagonals. One connecting A and D and another connecting B and C. Put a point at their intersection. Now use the distance/length to find the length from each vertex to that intersection point. What do you notice is true? Drag some of the vertices to see if this is always true.