# Find the length of the third side of the right triangle, if one side = 4sqrt3

Find the length of the third side of the right triangle, if one side = $4\sqrt{3}$, and the hypotenuse = 8.
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Bella
Using Pythagoras theorem,
${8}^{2}={b}^{2}+{\left(4\sqrt{3}\right)}^{2}$
${b}^{2}={8}^{2}–{\left(4\sqrt{3}\right)}^{2}=$
$=64–48=16$
${b}^{2}=16$
$b=4$