SOLUTION: Television set. What is it mmean to refer to a 20-inch TV set or 25-inch TV set. Such units refer to the diagonal of the screen. A 30-inche TV set also has the width of 24 inches.

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Question 347777: Television set. What is it mmean to refer to a 20-inch TV set or 25-inch TV set.
Such units refer to the diagonal of the screen. A 30-inche TV set also has the width of 24 inches.
What is its height.
What is the heieght of a 30-inch TV?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
diagonal = 30 ft
width =24 ft
height = ?
..
they form a right triangle
30^2= 24^2 + H^2 --------- H = height
30^2-24^2= H^2
900-576= H^2
324 = H^2
H=18 inches