ClipArt ETC
An illustration used to show how the area of a circle is calculated. Area is equal to the product of pi and the radius squared.

Area Of A Circle

An illustration used to show how the area of a circle is calculated. Area is equal to the product of…

Illustration showing the derivation of Tetrahedron from an Octahedron.

Tetrahedron From Octahedron

Illustration showing the derivation of Tetrahedron from an Octahedron.