Solving Equations Using Properties of Quadrilaterals: Practice Puzzle Activities with Angle Measures in a Quadrilateral Use quadrilateral properties and theorems to write and solve algebra equations that will help find missing angle measures. This set of 4 differentiated worksheets offers a fun way for your students to practice incorporating algebraic equations into geometry. In each puzzle, students use quadrilateral theorems and properties to set up the equations. Then, they solve to find missing variables or angle measures. If they shade/color all the simplified results correctly, a "GridWord" is revealed. Have your students act it out (tap, hop, etc.) or record it for a quick check. The differentiated sheets range in difficulty level. The most difficult one requires solving quadratic equations and systems of linear equations in 2 variables.
