SOLUTION: television screens are usually measured by the length of its diagonal. the television set has a 60-inch diagonal. the screen is 12 inches wider than its length. find the dimensions

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     +  = .


Solve this quadratic equation.


Or notice that  (x, x+12, 60) is a classic (3,4,5)-right angled triangle with the sides of 36 in, 48 in and 60 in.