television sets are measured by the length of the diagonal of their screens.  What is the height, to the nearest inch, of a square 48-inch flat-screen television?

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area of square = 1/2 (diagonal ^2)= 1/2* 48^2= 1152 cm^2area of square = height*heightor, 1152 = height^2thus, height = 34 inch approx.which is the required answer.