What is the name of a polygon with 40 sides? quadecagon pentaoctagon 40-gon heptagon

The name of the polygon with 40 sides is 40 –gon.

Solution:

Given that, we have to find the name of a polygon with 40 sides from the given four set of options .

Now, let us check the options once,  

Quadecgon ⇒ quad – deca – gon ⇒ 4 x 10 – gon ⇒ 40 sides  

Pentaoctagon ⇒ penta – octa – gon ⇒ 5 x 8 – gon ⇒ 40 sides

40 – gon ⇒ 40 sides

Hetagon ⇒ hepta – gon ⇒ 7 sides

Here last option is irrelevant , so let us eliminate it.

Now, options 1 and 2 are having more than 1 numerical prefixes which is unusual.

Hence, the name of the polygon with 40 sides is 40 – gon.

step-by-step explanation: