Question

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Answer 1

Explicación paso a paso:

$a^{2}=9\\a=\sqrt{9} \\a=3k$

$b^{2} =64\\b=\sqrt{64}\\b=8k$

$c^{2} =16\\c=\sqrt{16}\\c=4k$

$a+b+c=120\\3x+8k+4k=120\\15k=120\\k=8$

$a=3k=3(8)=24$

$b=8k=8(8)=64$

$c=4k=4(8)=32$