Question 152067
Complete: If (x, 12, 13) is a Pythagorean triple, then x = ________


x=a
12=b
13=c


Pythagorean:
{{{a^2+b^2=c^2}}}


Plug in values
{{{x^2+12^2=13^2}}}


Simplify
{{{x^2+144=169}}}


Subtract 144 from both sides
{{{x^2=25}}}


Square root both sides
{{{x=5}}}


(x, 12, 13)


Pythagorean Triple: (5, 12, 13)