A television is measured by its diagonal. If the height of a 70 inch television is 42 inches, what is the width?
1 answer:
Use the Pythagorean theorem:
70^2 = 42^2 + width^2
4900 = 1764 + width ^2
Subtract 1764 from both sides
3136 = width^2
Take the square root of both sides
Width = 56 inches
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