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Well, that's kind of an awkward way to say it, but if the 45 and the 28 are thelengths of the legs of a right triangle, then the Pythagorean Theorem tells us thatthe length of the hypotenuse is 53.
The same way that you find the hypotenuse in the case of integers or decimals. If a triangle has a right triangle, use Pythagoras' Theorem.
-11+4=
Well that is easy there is none and there is no way you can do that
I guess, the BPT is used in Tiles & Painting and so on... It can be useful as paintings, tiles & many other things as such require precision & BPT helps to make sure that its in proportional. The theorem states that when a line is drawn parallel to one side of the triangle (inside it) it divides the other two sides of the same triangle in equal proportions. Similar is the Converse and it proves true. BPT stands for Basic Proportionality Theorem & was discovered by Thales. I hope this satisfies your question.