10.
Refer to parallelogram ABCD. If AB = 8 cm, what is the perimeter of
the parallelogram?
6 cm
11. BALANCING Nikia, Madison, Angela, and Shelby are balancing on an
X-shaped floating object. To balance, they want to stand so they are
at the vertices of a parallelogram. To achieve this, do all four of them
have to be the same distance from the center of the object? Explain.
12. FORMATION Four jets are flying in formation. Three of the jets are shown
in the graph. If the four jets are located at the vertices of a parallelogram,
what are the three possible locations of the missing jet?
13. BUILD PERSEVERANCE IF ABCD is a parallelogram and, show that
quadrilateral JBKD is a parallelogram.
2
Module 7 \cdot Quadrilaterals