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jmc

prealgebra senior

Problem

Many television screens are rectangles that are measured by the length of their diagonals. The ratio of the horizontal length to the height in a standard television screen is . What is the horizontal length (in inches) of a ``27-inch'' television screen?

problem
Solution
The height, length, and diagonal are in the ratio . The length of the diagonal is 27, so the horizontal length is inches.
Final answer
21.6