[br]Three-sided figures are called[i][b] triangles[/b][/i]. They could also be called [i][b]trilaterals[/b][/i]. They are 3-gons.[br] All equilateral 3-gons are equiangular. All equiangular 3-gons are equilateral.[br][br]Four-sided figures are called quadrilaterals. They could also be called quadrangles. They are 4-gons.[br]Here are some categories of 4-gons;[br][br] • 4-gons that are equiangular[br] • 4-gons that are [b]NOT[/b] equiangular[br] • 4-gons that are equilateral[br] • 4-gons that are [b]NOT[/b] equilateral[br][br]Give an example of a 4-gon that fits in each category.[br]Are there 4-gons that fit in[b] NO[/b] category? Example, or why not?[br]Are there 4-gons that fit in [b]MORE THAN ONE[/b] category? Example, or why not?[br][br]What about pentagons (5-gons)? hexagons (6-gons) ?[br][color=#ff0000][i][b][br]What questions could / would you ask your students based on this applet ?[/b][/i][/color]