Question

determine o valor de x e y
me ajuda por favor​

Answer 1

$\mathtt{{x}^{2}={9}^{2}+{12}^{2}}$

$\mathtt{x=\sqrt{{9}^{2}+{12}^{2}}}\\\mathtt{x=\sqrt{81+144}=\sqrt{225}=15}$

$\mathtt{{x}^{2}={10}^{2}+{y}^{2}}$

$\mathtt{225=100+{y}^{2}}\\\mathtt{{y}^{2}=225-100=125}\\\mathtt{y=\sqrt{125}=\sqrt{25.5}=5\sqrt{5}}$