Give reason : (a) The blades and knives are made sharp.
Answers
As we know that blades and knives are used for cutting or chopping things . And this task is only possible through Sharp objects . So for doing this we make knives and blades Sharp.
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Answer:
they are made with sharp edges to cut the things easily as the sharp edges has small Area on which the force is applied hence more pressure is applied
Explanation:
as we know pressure is equal to force/ area from the above mathematical expression we can say that the pressure applied on a body is inversely proportional to the area on which the force is applied the pressure exerted on a small surface area is more then the pressure exerted on the last surface area so we can conclude that equal force can accept higher pressure on a small area this is why the cutting edge of tools that plays nice extra are provided with sharp edges to cut the things easily the high pressure at the end of the Earth surface can easily pierce through wood and plastic etc surfaces please mark me as the brainliest