Question

Calculate the width of a 80” TV if the TV has an aspect ratio of 21:9.

Answer 1

It is 73.5”

Explanation:

The TV has a diagonal measurement of 80”. The first number of the aspect ratio refers to the width and the 2nd number refers to the height.

Answer 2

34.29 Inch.

Explanation:

The Aspect Ratio of a screen is the ratio of the Width to the Height of the screen.

We are told that the TV screen has an aspect ratio of 21:9

Therefore:

`(Width)/(Height)=(21)/(9) \\$Since Width =80''\\(80)/(Height)=(21)/(9)\\$Cross multiply\\Height*21=80*9\\Height =(80*9) / 21\\$Height =34.29`

The height of the TV will be approximately 34.29 Inch.