Question

Why are wheels of an auto mobile made circular ?

Answer 1

$\colour{Hello !}$

Circular wheels roll on the road.
Therefore motion of vehicle is opposed by rolling friction which is much smaller than the sliding friction.

Remember : Don't Mark

Thank you !

Answer 2

Wheels of automobiles are made circular to reduce the frictional force. Rolling friction is less than sliding friction and that is why wheels are circular in shape. Had the wheels been of any other shape, then sliding friction would have come into play and that would have caused more friction and more resistance in the movement of automobiles.....

.....Hope it helps....

.....Please mark as brainliest.....