G.E.D. Math 25b, Quadrilaterals (diagonals & missing angle measures)

An explanation of the different types of quadrilaterals and their sides, angles, and diagonals. How to find missing angle measures, what makes a parallelogram special, the traits of all parallelograms.
Rectangle, rhombus, square, trapezoid and isosceles trapezoid, and Special Parallelograms are discussed.

Grade 5 Math #11.1, Identify Polygons and Congruent parts

Grade 5 Math #11.3, Quadrilaterals, Rectangle, Square, Parallelogram, Rhombus, Trapezoid

Grade 6 Math #11.3, Congruent polygons

Grade 6 Math #11.5, Quadrilaterals - find the missing measures

G.E.D. Math 25a, Triangles

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