why do we use circle for making tyres? why not squares or triangles?

1 ) CONTACT TO GROUND IS LESS

2 ) Friction with ground is minimum iscase of round tyre

Circle Tyres

We use the circular shape of the tyres for the fast Movement.

It is only the Frictional force which reduces the speed.For ex. Brakes work on friction.

In the circle there is only single point frictional force works. Circle is in the contact of the earth only at one point.

But in other shapes the more area is in the contact of earth. More area is in contact of earth it means more frictional force will work and it'll not allow the wheels to move fast.You cant role any other shapes (rectangle,triangle,square.....etc.)as fast as a Circle.

There for, We always take a circle to make a Tyre for the fast movement only.

The circle shape is the shape that provides the least rolling resistance therefore it provides the

least loss of energy when converting rotational energy to linear kinetic energy. Any shape other than a circle is going to present points that dig into the surface you are trying to traverse and require extra energy to undig. However the circle shape does dig into a surface so resistance caused by gravity does not have to be opposed.

Sweety triangles and squares wouldn't be a good Idea, they'll be really really bumpy because they have pin point edges But circles are well rounded and creates a smooth movement.

It is because circles look nice on cars as opposed to triangles or squares. They would just look ugly.

Another reason is they are easier to manufacture and cheaper as they need less material to make.

We use circular tyres because of single point friction between road and tyres.... therefore we need less force to move...... otherwise square or triangle has more friction points ......

hey kitkat,

in circular shape the radius is always same where as it is different in square or triangles, So being radius same we can have smooth ride rather than bumpy ride square or triangles.

We use geometry for measuring distance, measuring land etc.

Do squares and triangles roll? No. Good idea though

we do not use squares because it cannot rool nor triangles can. We use geometry to construct buildings + to get passed