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can some also help me out with this problem ? like i really need some steps on how to do this so i won’t forget when i do the other problems

can some also help me out with this problem ? like i really need some steps on how to do this so i won’t forget when i do the other problems class=

Answer :

A^2 + B^2 = c^2
12^2 + b^2 = 20^2
144 + b^2 = 400
-144 -144
b^2 = 256
sqrt(b^2) = sqrt(256)
b=16
x=16
You’re using the Pythagorean theorem to solve for this where (a) represents a side of triangle, (b) represents another side and (c) represents the hypotenuse.

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