Answer:
x = 13
Step-by-step explanation:
Use pythagorean theorem since you have a right angle. So [tex]c^{2} = a^{2} + b^{2}[/tex]
so in this case [tex]c^{2} = 5^{2} + 12^{2}[/tex] so c = [tex]\sqrt{25+144}[/tex] and c = [tex]\sqrt{169}[/tex] so c = 13
