Pentagon

The is the fourth strongest Polygon in Diep.io (in regard to toughness) with 100 HP, further buttressed with 12 HP in Body Damage. It grants a score of 130 XP to the player that landed the final blow. 
It spawns fairly rarely compared to the Square and the Triangle and are scattered throughout the map. It is rare to see more than 4 of them at once, except when the player is within the Pentagon Nest or at an untouched area that has experienced little to no disturbance. It is a stronger Polygon than both the Square and Triangle, but weaker than green Polygons (with the only exception being the Green SquareAlthough both have the same amount of HP, the Blue Pentagon has 12 HP in Body Damage as opposed to 8 for the Green Square, making it the tougher Polygon to destroy.) and its Alpha variant.
== Strategy ==
Pentagons help serve as great XP sources, giving the highest amount of all normal Polygons (excluding green variants or its Alpha version). This is especially useful through the early stages of the game, as they will level up players quite fast.
Unlike the Square and Triangle, Pentagons have a considerable amount of HP, further backed by having greater Body Damage, which can often be dangerous and even fatal to players with low health stats. Investing 2-4 points into Body Damage and Max Health while alternating between the two respectively can help significantly increase the amount of damage sustained when bumping into Pentagons.
The Pentagon Nest can be hazardous for low-Levels and glass builds due to the high density of Pentagons that commonly spawn in the area, often creating temporary barriers which may pose as obstacles if not careful. This can be especially notable when a large numbers of Crashers are present, as they can chase or even push players to bumping into Pentagons or even Alphas.
Their high Body Damage and HP makes them useful strategic traps. If the enemy is suppressed towards the Pentagon Nest or an individual Pentagon, there is a good chance that they will lose very large amounts of HP, making them an easy kill.
== Trivia ==
*When the player's Tank is at Level 1, the Body Damage dealt by touching (not destroying by head-on ramming) it is approximately 1/5th. If one attempts to kill a Pentagon by smashing into it, the player's Tank will die.
**If one manages to destroy a Pentagon as Level 1, they will skip the next 6 Levels, landing at Level 7.
*The Pentagon has the greatest number of variants out of any Polygon, that of which being the standard Blue Pentagon, the Nest-exclusive Alpha Pentagon, and the very rare and rewarding Green Pentagon.
== Gallery ==
BluePent.PNG|A Pentagon with the old color scheme.
Newpentagon.jpg|A Pentagon with the new color scheme
DiepPentagon.png|An isolated Pentagon