Question 629224
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
A 20 in(diagonal is 20in) tv set also has a width of 16 inches. What is its height? 
applying the Pythagorean Theorem:  {{{sqrt(20^2 - 16^2) = sqrt(144) = 12in}}}