SOLUTION: Televisions are advertised by the length of their diagonals. If a 42 inch measures 18 inches high, how wide is the television?

Question 936547: Televisions are advertised by the length of their diagonals. If a 42 inch measures 18 inches high, how wide is the television?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
d = sqrt( ww + hh )
---
square both sides:
dd = sqrt( ww + hh )^2
dd = ww + hh
ww = dd - hh
w = sqrt( dd - hh )
---
w = sqrt( 42*42 - 18*18 )
w = 37.947331922
---
answer:
width = 37.95 inches
---
Free algebra tutoring live chat:
https://sooeet.com/chat.php?gn=algebra
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations with quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
RELATED QUESTIONS
if a 42 inch television is 21 inches high how wide is the television Pythagorean theorem (answered by Alan3354,stanbon)

Televisions are sold by the length of the diagonal across the screen. If a new 48-in... (answered by rfer)

The aspect ratio of older television monitors is 4:3. One such television has a... (answered by rfer)

Consumer Application: Televisions and computer screens are usually advertised based on... (answered by rfer,solver91311)

A 30-inch television has a screen that is 18 inches high. How wide is the... (answered by srinivas.g)

A yardstick measures 0.5 by 2 by 36 inches. How many yardsticks will fit in a box 3.5... (answered by ankor@dixie-net.com)

A yardstick measures 0.5 by 2 by 36 inches. How many yardsticks will fit in a box 3.5... (answered by Edwin McCravy)

A yardstick measures 0.5 by 2 by 36 inches. How many yardsticks will fit in a box 3.5... (answered by checkley77)