Question

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

If a television set measures 33 inches diagonal, what is the screen width?

I know that the answer is 26.4 but I don't know how to get to that answer. Please help and thank you! :)

Answer 1

It has something to do with the Pythagorean theory.

Answer 2

a^2 + b^2 = c^2

Answer 3

Yes i do know that equation but how do i input the numbers?

Answer 4

let the screen width equal= x
so height equal 0.75x

we know that (0.75x)^2+x^2= the diagonal d^2

so: 1.5625x^2=33^2
and x^2= 696.96
therefore x= 26.4 which is the width

good luck, anything you didn't get let me know!

Answer 5

ohhhh :D I understand now. Thank you very much!!

Answer 6

yeh just make sure you understand the initial assumptions about the width and height of the tv, and how they are related.

Answer 7

got it :)