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If you mean in a car engine, it's because an explosion (even a controlled one of the gasoline/petrol being ignited by a spark plug) creates a spherical force. So, the cylindrical piston is the same shape as the explosion, and gets the most efficient pressure distribution. A rectangular piston would get force in the middle, but not the edges, and it would take more force to do the same job. Also, the rectangular piston would wear down faster because of the uneven force being applied.
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How many equal edges does a cube have?
12. but if you cant answer that your self, you apparently cant do your math!
What geometric shape has 2 faces 2 edges?
that is impossible!!! you cant have 2 edges make a shape
Does every lateral face in a prism a triangle?
No, there are more that triangular prisms. There are also rectangular prisms and one other that i cant recall.=-)
What size rectangular floor can be completely covered by using 3x3 ft tiles or 5x5 ft tiles you cant cut tiles or combine them?
A 3 x 5 rectangle.
Why cant a number that ends in 7 be a multiple of 8?
just cant
