- GeometryRectangle and Triangle Area RelationshipArea of a parallelogramArea of a RhombusArea of a kiteArea of a KiteArea of Trapezoid AppletArea of a Trapezium finding and comparingExplore the Hinge Theorem and its Converse.Triangle InequalitiesTriangle Inequality InvestigationExploring Special Right TrianglesPythagorean Theorem - a "proof without words"Pythagorean theoremPythagorean Theorem - with regular polygonsACCESS - Similar Triangles8.1 Pythagorean Thm & Converse & Pythagorean Ineq ThmSide, Perimeter, and Area of Similar Figures.Point in an Equilateral Triangle - revisited