Let x be the height
Using Pythagoras Theorem,
[tex] a^{2} + b^{2} = c^{2} [/tex]
[tex] x^{2} + 48^{2} = 60^{2} [/tex]
[tex] x^{2} + 2304 = 3600[/tex]
[tex] x^{2} = 3600 - 2304[/tex]
[tex] x^{2} =1296[/tex]
[tex] \sqrt{ x^{2} } = \sqrt{1296} [/tex]
[tex] x = 36[/tex]
The height of the Tv is 36 inches.