The shape of a structure affects how strong it is. Rectangles, arches, and triangles are the most common shapes used to build big structures. What happens when you push the side of a rectangle?

A square and a rectangle, a circle and a triangle. BOY: If you’re looking for a square, you can see them everywhere. Images of the shapes appear as they are mentioned in the song. BOY ...

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.

Explain that size is another property of an object. The objects can also be sorted by shape, according to whether they are a square, triangle, or circle. Explain that shape is also a property of an ...