Question

A wide screen television display measures approximately 15 inches high and 27 inches wide. A television is advertised by giving the approximate length of the diagonal of its screen. How should the television be advertised?
A) 36 in.
B) 31 in.
C) 30 in.
D) 21 in.

Answer 1

The answer would be B) 31 in.

Answer 2

The answer would be 31 in.

First do the Pythagorean theorem. 

225+ 729= 954

Then find the square root of 954 which is 30.88 repeating, so round up to 31 in.