Maths: Age 12

3 illustrated Maths lessons for Age 12.

Orb Web Geometry An orb web is built from straight lines that radiate from a center and a spiral that crosses them. The spider …
Triangle Angles on a Line The three angles of a triangle can be placed together. They then form a straight line, which is 180 degrees.…
Triangle and Rectangle A rectangle can be split along a diagonal into two equal triangles. The area of one triangle is half the area …