Question

A certain television is advertised as a 73-inch TV (the diagonal length). If the width of the TV is 48 inches, how many inches tall is the TV?

Answer 1

use Pythagorean Theorem to find the height with the diagonal is the hypotenuse, the width is a leg, then find the other one.

a^2+b^2=c^2

48^2 + b^2 = 73^2

b^2 = 3052

b=55

Therefore, the answer is 55