Question

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Answer 1

Answer:

x=20

Step-by-step explanation:

The Pythagorean theorem is $a^2+b^2=c^2$, where a and b are the legs (the smaller sides) and c is the hypotenuse. So, plugin 12 and 16 for a and b, then solve. This looks like $12^2+16^2=c^2$. Next, simplify the equation, $12^2$=144 and $16^2$=256; then add 144+256. The new equation is 400=$c^2$. The final step is to take the square root of both sides. Since $\sqrt{400}$=20, x (the hypotenuse) must equal 20.