Respuesta :

GDKmartinez

Answer:

x=20

Step-by-step explanation:

12^2 + 16^2 = 400

square root of 400 = 20

Akirachacha

Answer:

if you use the hypotenuse formula

[tex]c = \sqrt{a ^{2} + {b}^{2} }[/tex]

a = 12

b = 16

now input the values and solve for c

[tex]c = \sqrt{ {12}^{2} + {16}^{2} } [/tex]

[tex]c = \sqrt{144 + 256} [/tex]

[tex]c = \sqrt{400} [/tex]

Square root of 400 = 20

so the long side is 20