Question

Why does knife have sharp edges and the needle has sharp tips? ??

Answer 1

Answer:

Explanation:

The cutting edges of tools like blades, knives etc., are provided 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.

Answer 2

Answer:

Knife: To cut things with larger surface area.

Needle: To Stitch Clothes

Explanation:

Using a knife, we tend to cut things such as veggies etc. with larger surface area. So, dedicating an edge for cutting will make it easier to cut the object.

Whereas, in needle we use it to stitch our clothes, in which only one-point precision is required. Thus, needle is better for its purpose

Hope this helps! ;)