SOLUTION: Sizes of TVs are determined by a diagonal measurement of their screen. If a TV has a diagonal measurement of 55 and a height of 30, what is the TV's width? Round answer to neares

Algebra ->  Points-lines-and-rays -> SOLUTION: Sizes of TVs are determined by a diagonal measurement of their screen. If a TV has a diagonal measurement of 55 and a height of 30, what is the TV's width? Round answer to neares      Log On


   

Question 1153569: Sizes of TVs are determined by a diagonal measurement of their screen. If a TV has a diagonal measurement of 55 and a height of 30, what is the TV's width? Round answer to nearest whole number.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

a diagonal d,a height h, and a width w form right triangle where d is hypotenuse, h and w legs

if a TV has a diagonal measurement of d=55 and a height of h=30,then, using Pythagorean theorem, the width will be:
w%5E2=d%5E2-h%5E2
w%5E2=55%5E2-30%5E2
w%5E2=3025-900
w%5E2=2125
w=sqrt%282125%29
w=46.1