Question 258572
You could use the Pythagorean theorem, which is {{{a^2+b^2= c^2}}}.so suppose 5 is a and 12 is b. You plug in values. So you do {{{5^2+12^2=c^2}}}. when you simplify that, you get 25+144=c^2. So you add and get 169=c^2. So when you do the square root of c^2, which is c, you have to do it to 169. The square root is 13. So c=13 in.