Rectangle facts for kids
People make many rectangular things, including most tables, boxes, books, and papers. The word comes from Latin words meaning "right" and angle".
A rectangle whose four sides have the same length is called a square.
If a rectangle has length and width w, then:
- It has area .
- it has perimeter .
- Each diagonal has length .
- it has an aspect ratio of : w.
- When , the rectangle is a square.
- When is equal to the golden ratio, the rectangle is called a golden rectangle.
Images for kids
A saddle rectangle has 4 nonplanar vertices, alternated from vertices of a cuboid, with a unique minimal surface interior defined as a linear combination of the four vertices, creating a saddle surface. This example shows 4 blue edges of the rectangle, and two green diagonals, all being diagonal of the cuboid rectangular faces.
Rectangle Facts for Kids. Kiddle Encyclopedia.