Question

a flat screen television is advertised as being 47 inches on its diagonal. if the tv is 19 inches tall, then how wide is the screen?

Answer 1

42.85 inches wide

Explanation:

You must use the Pythagorean theorem

width^2+19^2=47^2

width^2=47^2-19^2

width=square root of (2209-361)

width=square root of (1848)

width= 42.85 inches