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A certain television is advertised as a 85-inch TV (the diagonal length). If the width ofthe TV is 67 inches, how tall is the TV? Round to the nearest tenth of an inch.

User Arun Sooraj
by
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1 Answer

7 votes
7 votes

Let's take a look at the screen:

Using the Pythagorean theorem,


85^2=67^2+y^2

Solving for y,


\begin{gathered} 85^2=67^2+y^2 \\ \rightarrow y^2=85^2-67^2 \\ \rightarrow y=\sqrt[]{85^2-67^2} \\ \rightarrow y=52.3 \end{gathered}

Therefore, the TV is 52.3" tall

A certain television is advertised as a 85-inch TV (the diagonal length). If the width-example-1
User Nubaslon
by
3.0k points
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