Enlargements create shapes that are similar. To understand congruence and similarity, a good understanding of the properties of polygons, including triangles and quadrilaterals, can be helpful.
Or the Animate feature to display families of triangles. Have the students notice that the triangle always has three sides. Have the students draw triangles using pencil and paper. Ask for examples of ...
Instead they appear to have been made by a six-year-old. The centrepiece is a platter of sandwiches cut into triangles. There are paper plates. You are tempted to look around for party hats and ...
Of course, M-M-F love triangles aren’t new: Remember in Sex and the City, when Carrie watched Big and Aidan literally mud-wrestle over her? But more recently, M-M-F love triangles have been used ...