Problema Solution
Television Screen a 25-inch television has a rectangle screen on which the diagonal measures 25 inches. the ratio of the length to the width of the screen is 3 to 4. let the length equal 4x and the width equal 3x, and then use the pythagorean theorem to solve for x. then find the length and width of this television screen.
Answer provided by our tutors
a^2 + b^2 = c^2
(4x)^2 + (3x)^2 = 25^2
16x^2 + 9x^2 = 625
25x^2 = 625
x^2 = 25
x = 5
so your TV width is 4x = 4*5 = 20 inches
your TV height is 3x = 3 * 5 = 15 inches