Question

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Answer 1

x=20

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
`√(400)`=20, x (the hypotenuse) must equal 20.