How do you solve the right triangle ABC given a=5, b=12?

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Answer 1 · 2016-11-01T05:14:52

#c = 13#

#c^2 = a^2 + b^2#

#c^2 = 5^2 + 12^2#

#=> c^2 = 25 + 144#

#=> c^2 = 169#

#=> c = +-13#

But since we are dealing with lengths here, only positive values are valid solutions.

#=> c = 13#