Emilie du Chatelet, a French philosopher in the 1700s Did Emilie du Chatelet go to school? Emilie du Chatelet's rich father, who was interested in literature and science, hired tutors [...]
Pyramid Just as a plane is made of an infinite number of lines, a solid is made of an infinite number of planes. These planes are right next to each other, like [...]
This is a rectangle. A rectangle is a flat shape, in one plane. It's defined by four points at the four corners. A rectangle has two sides of equal length opposite each other, [...]
This is a triangular prism A prism is the solid shape you get if you move a flat polygon through space. A prism has five planes: a top, a bottom, and [...]
