SOLUTION: the television screen is 20 inches across. If the diagonal measures 25 inches how high is the screen?
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Question 262389: the television screen is 20 inches across. If the diagonal measures 25 inches how high is the screen?
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
This is a Pythagorean theorem question. We have
a^2 + b^2 = c^2
20^2 + b^2 = 25^2
400 + b^2 = 625
b^2 = 225
b = 15.
The height is 15 inches
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