Polygons, Symmetry & Congruence

Interactive macro-enabled MS-Excel spreadsheet. Contents: Describe the geometric properties of triangles. Describe the geometric properties of special quadrilaterals. Describe the geometric properties of irregular quadrilaterals. Describe the geometric properties of n-sided regular polygons. Describe the geometric properties of n-sided irregular polygons. Identify the symmetry properties of designs, shapes or digits. Tessellate congruent rectilinear shapes using transformations. Tessellate congruent isometric shapes using transformations. Identify congruent & similar triangles, quadrilaterals or shapes. Identify congruent triangles using SSS, SAS, ASA, RHS conditions. Draw all 14 distinct 4-triangle Super Tangrams on a square grid. Draw all 12 distinct 5-square Pentominoes on a square grid. Draw all 12 distinct 6-triangle Hexiamonds on an isometric grid.