Question

Por favorrrrr me ajudem

Answer 1

$h ^{2} =18 ^{2} +14 ^{2}$
$h ^{2} =324+196$
$h ^{2} =520$
$h= \sqrt[2]{520}$
$h= \sqrt[2]{2*260}$
$h= \sqrt[2]{2*2*130}$
$h=2 \sqrt[2]{130}$