What are the applications of similar triangles, Pythagorean theorem in real life?

Answer 1

As has been already mentioned, surveyors and people in the building trades use both a lot. Then there was the time I answered what was the best of several focal length lenses based on estimates of the distance and the field of view that these lenses would give based on similar triangles. The pantograph can rout, etch, or draw its different-sized copies from a traced original because of similar triangles (and related shapes). Engravers use this tool a lot because it allows many different-sized fonts from a single set of original dies. You can also divide a length into an arbitrary number of equal parts with similar triangles.

Answer 2

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What are the applications of similar triangles, Pythagorean theorem in real life?

Answer 3

Teaching them would be one application. But in real life, I guess if you were in a math competition, trying to earn a scholarship or something of the sorts, you would need it. If you were to find a building kind of triangular in shape, but then the top goes down (hard to explain), you would need to use the Pythagorean Theorem to measure the final top if you can't really see the top so well. You would have to measure the sides first, or however the building is. When you are an architect or something, I supposed you use it if you want to make a building.

Answer 4

Surveying makes use of both.

You can find the height of a tree using similar triangles.

These are a couple of many examples.

Answer 5

Try to land an artillery shell without a few triangles. (Yes, the shells trajectory is a curve, but with high explosive close enough counts.:) )

Navigation. Even though the GPS might become a crutch, like calculators.

Answer 6

Imagine that you forgot your computer screen wide and that you don't have a ruler big enough to measure it. If the ruler is large enough to measure screen's width and height, you can calculate screen wide simply. For example, my screen's width and height is respectevely 13,3 and 10,7 inches. As so the wide is given by the hyphotenuse (given the fact that the corner as a 90º angle). Therefore the wide is: (13,3^2 + 10,7^2)^(1/2) = 17,07

Answer 7

I remeber watching a program about how the use of geometry has led to a creation of fortresses much stronger
in ancient times.

Answer 8

Are you asking if you are ever gonna use geometry in real life??? Absolutely?!?!? I use it all the time figuring out how much distance to put between bends when I'm bending complex conduit bends in the electrical field. I use it when I'm mounting electrical panels and want to make sure that it is square. Sorry, math really does apply to life situations