Please help. Have to turn in 12/12.

Question

The aspect ratio of a widescreen tv is the ratio of the screen's width to its height, or 16:9. Given tv screen size is referred to the length of the screen's diagonal, what are the length and width of a 32 inch screen TV?

Answer 1

This kind of problem is easiest if you figure out how to find one of the dimensions at a time, for example, the height; once you get that answer, you can use it to get the other (the width). In this case, the "aspect ratio" tells you that the width is 16/9 times the height. The width, height, and diagonal form a triangle, so you use Pythagoras' formula (d² = w² + h²) to find the solution. Instead of using "w" in the formula, try substituting "(h×16/9)".