In a standard television set, the screen height is 0.75 times the screen width.

Question

If a television set measures 29 inches along the diagonal, what is the screen width?

Answer 1

w = width

0.75w = length

length and width form the legs of a right triangle, while the diagonal is the hypotenuse.

Per Pythagorean Theorem: w^2 + (0.75w)^2 = 29^2

1.5625w^2 = 841

w^2 = 538.24

w = 23.2