Slide 1FeatureLesson Geometry Lesson Main Find the values of the variables for which GHIJ must be a parallelogram. 1.2. x = 6, y = 0.75 a = 34, b = 26 Proving That a Quadrilateral…

Slide 1The ah ha moment A. Problem Solving Courses B. The UNC Statewide Mathematics Contest: 7-12th graders C. Undergraduate Research Projects RICHARD GRASSL - UNC Slide…

Slide 1 Warm-up Pg 520 #39, 40 Pg 529 #43-45 Slide 2 Properties of Rhombuses, Rectangles, and Squares 8.4 Slide 3 Rhombus A rhombus is a parallelogram with four congruent…

The âah haâ moment Problem Solving Courses The UNC Statewide Mathematics Contest: 7-12th graders Undergraduate Research Projects RICHARD GRASSL - UNC Problem Solving Courses…

6.4 Special Parallelograms Essential Questions: How do you use properties of diagonals of rhombuses and rectangles? How do you determine whether a parallelogram is a rhombus…