Question

calcule o valor de y​

Answer 1

$cateto^{2} + cateto^{2} = hipotenusa^{2}$

$3^{2} + y^{2} = 5^{2}$

9 + $y^{2}$ = 25

$y^{2}$ = 25 - 9

$y^{2}$ = 16

y = $\sqrt{16}$

y = 4