A 42 inch television is a television whose screens diagonal

A 42 inch television is a television whose screen\'s diagonal length is 42 inches. If a television\'s screen height is 26 inches, find the width of the television screen.

Solution

Usign pythagorous theorem

diagonal² = height² + width²

given length of diagonal = 42 inches

height = 26 inches

==> 42² = 26² + width²

==> width² = 42² - 26²

==> width = (42² - 26²) = 32.985

Hence width of television screen = 32.985 inches