Given a right triangle $△ A B C$ $triangle ABC$ with $C = 90^{\circ}$ $C=90^circ$ , if b=12, c=13, how do you find a?

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Answer 1 · 2017-08-25T17:51:29

Given that $Delta"ABC"$ is a right triangle, one can use the Pythagorean Theorem find the length of side a:

$c^2 = a^2 + b^2$

$a = sqrt(c^2-b^2)$

$a = sqrt(13^2 - 12^2)$

$a=sqrt(25)$

$a = 5$

Given a right triangle triangle ABC△ABCtriangle ABC with C=90^circC=90∘C=90^circ, if b=12, c=13, how do you find a?