Pythagorean theorem² + cogwheels² = Pythagorean Cogeorem² (a² = b² + c² is often written as c² = a² + b², same idea).
Pythagorean Cogeorem a² = b² + c² free icon was designed by AdamStanislav for icons Png and presented to its users.
AdamStanislav
3/25/2018