Algebra

A large screen at a theater measures 65 feet diagonally. The aspect ratio (width compared to height) of the screen is 21:9. What is the approximate width and height of the screen?

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  1. (21^2 + 9^2) = 22.847
    But your screen has diagonal of 65.
    So, just multiply 9 and 21 by 65/22.847

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