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Shapes

# Cousin Fal's shape collection

Sal classifies shapes based on their number of sides, number of corners, and side-lengths. Created by Sal Khan.

## Want to join the conversation?

• whats a octagon
• octagon is a shape that have 8 sides and 8 coNers.
• Is there a shape with 13 sides?
• triskaidecagon, thats your shape with 13 sides.
• can a rectangle be a sqaure
• a square can be a rectangle but a rectangle cannot be a square
• What is a shape called if it has 100 sides?
• For short, it can be a 100-gon, but it is called zocchihedron.
• who many different shapes are there
• A whole lot of different shapes. Like triangles, squares, hexagons, decagons and a whole lot more. There is no limit to shapes.
• What are 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 sided shapes called. Also Thank you
• 3 sided shapes are called triangles,
4 sided shapes are called squares,
5 sided shapes are called pentagons,
6 sided shapes are called hexagons,
7 sided shapes are called heptagons,
8 sided shapes are called octagons,
9 sided shapes are called nonagons,
10 sided shapes are called decagons,
11 sided shapes are called hendecagon,
12 sided shapes are called dodecagon.
• can a shape have 100 sides?
• Zocchihedron, hectogon, or hecatohedron
• what is a 31 sided shape
• I don't believe you will encounter a 31-sided shape, but it is called a triacontakaihenagon.