6-6 Placing Figures in the Coordinate Plane

L.E.Q. How do you use properties of special figures to name missing coordinates?

In the diagram, rectangle KLMN is centered at the origin with sides parallel to the axes. Find the missing coordinates of K, M, and N.

Example 1: Naming Coordinates.

Use the properties of parallelogram OPQR to find the missing coordinates. Do not use any new variables.

An art class creates T-shirt designs by drawing quadrilaterals, connecting their midpoints to form other quadrilaterals, and then coloring the regions. Tiana claims that everyone’s inner quadrilateral will be a parallelogram. Is she correct? Explain.

Example 2: Real-World Connection.

Use a different method to show that TWVU is a parallelogram by finding the midpoints of the diagonals.

Pgs. 328 – 329 #s 1 – 6, 28 – 30.

Homework: