Question

The size of a rectangular TV screen is given by the length of its diagnol. What is the width of the 27 TV screen with a height of 16.2 inches?

Answer 1

Given:

The size of a rectangular TV screen is given by the length of its diagnol.

THe diagonal length is 27 inches.

The height is 16.2 inches.

Required:

To find the width.

Step-by-step explanation:

From the given data

Let x be the width.

From the above figure

`\begin{gathered} 27^2=x^2+16.2^2 \\ \\ x^2=27^2-16.2^2 \\ \\ x^2=729-262.44 \\ \\ x^2=466.56 \\ \\ x=√(466.56) \\ \\ x=21.6 \end{gathered}`

Final Answer:

The width of the TV screen is 21.6 inches.