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## Main Question or Discussion Point

and what are the concepts of magnitudes..and how do we apply that in real life situations.

- Thread starter bogoa
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and what are the concepts of magnitudes..and how do we apply that in real life situations.

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Magnitude just means "size" or "bigness" - so it can be used in many different situations.and what are the concepts of magnitudes..and how do we apply that in real life situations.

Pythagoras' theorem just helps us to calculate magnitude in some situations:

If you imagine a graph with x going across and y going upwards, you can draw a line from the centre (where the axes cross at 0,0) to any point you like... for example the point 4,3 (x=4, y=3).

So if you then draw another line along the x axis to 4, and another up to the end of your line, you have drawn a triangle, and you can use pythagoras to find the length (the magnitude) of your line

magnitude

= 4^{2} + 3^{2}

= 16 + 9 = 25

so magnitude in this case is sqrt (25) = 5= 16 + 9 = 25

you could use this to calculate the size of a piece of wood you would need on a gate, or something much more advanced.

hope this helps,

Michael

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but how about resultant from magnitude??what is thier differences??can you please help me?..im so confused right now..

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