if the length of the diagonal of a tv is 50in and the tv is 30 inches tall, what is the Pythagorean Theorem?

Question

 the new Best Buy ad, a television is listed as being 50 inches, which is the length of the diagonal of the screen. If the TV is 30 inches tall, how wide of a space do you need for it to fit?

Answer 1

Your title does not make much sense--the PYTHAGOREAN Theorem is what it is, regardless of the dimensions of anybody's TV!

 

Using the Pythagorean theorem for the problem described in the details that you supplied, you will determine that the the other dimension of the TV SCREEN is 40 inches.

 

As to fitting into a space, it's best to measure the OUTER DIMENSIONS of the TV, which are greater than the screen dimensions.