Question 295982
If a tv screen measures 56" diagnal and 49" across the bottom what is the height of the tv screen. 
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Apply Pythagorean theorem:
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Let h = height 
then
h^2 + 49^2 = 56^2
h^2 = 56^2 - 49^2
h^2 = 735
h = 27.11 
or rounded:
h = 27 inches