Question

What do you call a $16$ sided shape?

Answer 1

A shape with $16$sides:

1. A polygon that has $16$sides is called a hexadecagon or a hexakaidecagon.
2. “Hexa” means six and “deca” means ten, so “hexadeca” means $16.$
3. The sum of interior angles in a polygon(convex) is found by $\left(n-2\right)\mathbf{180}\mathbf{°}$, where $n$is the number of sides.
4. Since the hexadecagon has $16$sides, there will be $16$angles.
5. The sum of interior angles of a hexadecagon is $2520°$.
6. If it is a regular polygon, each angle is $157.5°$.

Hence, $16$sided shape is known as hexadecagon.