Respuesta :

Noctnel
x = 5.

Pythagorus Theorem:
c^2 = b^2 + a^2
(13)^2 = (12)^2 + a^2
a = sqrt((13)^2 - (12)^2))
a = 5

First check attached image

By Pythagoras theorem,

[tex]ac^{2} = {bc^{2} + ab^{2} } [/tex]

[tex]→13^{2} = {x^{2} + 12^{2} } [/tex]

[tex]→13^{2} = {x^{2} + 144} [/tex]

[tex]→169 = x^{2} + 144[/tex]

[tex]→169 - 144 = x^{2} [/tex]

[tex]→25 = x^{2} [/tex]

[tex]→ \sqrt{25} = x[/tex]

[tex]→5 = x[/tex]

Therefore, value of x is 5

Ver imagen Аноним