# The TV screen is 52 in. wide and 29 in. high. How do you find the length of of its diagonal?

Apr 23, 2016

$c \approx 59.54$
For this we use the Pythagorean theorem: ${a}^{2} + {b}^{2} = {c}^{2}$, where $a$ and $b$ are the two shorter sides and $c$ is the diagonal one. Using this, we get:
${29}^{2} + {52}^{2} = {c}^{2}$
${c}^{2} = 3545$
$c \approx 59.54$