Question

Qual o valor de x + y? *

Answer 1

Explicação passo-a-passo:

Pelo Teorema de Pitágoras:

• $\sf x^2+8^2=17^2$

$\sf x^2+64=289$

$\sf x^2=289-64$

$\sf x^2=225$

$\sf x=\sqrt{225}$

$\sf x=15$

• $\sf y^2+9^2=x^2$

$\sf y^2+9^2=15^2$

$\sf y^2+81=225$

$\sf y^2=225-81$

$\sf y^2=144$

$\sf y=\sqrt{144}$

$\sf y=12$

Logo:

$\sf x+y=15+12$

$\sf \red{x+y=27}$