Question

A TV has a length of 68 inches and a height of 51

inches. When TV's are advertised the size listed is the
diagonal length. What would be the advertised size of
this TV?

Answer 1

85 inches

Explanation:

Using pythag. A^2 + B^2 = C^2

(68*68) + (51*51) = 7225^2

Thus if you square root 7225, you get your answer - 85 inches.