How to Figure out The Measurements of Your TV

You don't need to understand what SIN, TAN⁻¹, or COS mean, just how to put it into the calculator to use this, just plug in the variables and put it into your calculator.

d=the diagonal length of your tv

e=the first part of the aspect ratio

f=the second part of the aspect ratio (e.g. with a 16:9 (widescreen) aspect ratio e=16 and f=9)

Your TV's length across=(SIN(TAN⁻¹(e/f)))*d

Your TV's height=(COS(TAN⁻¹(e/f)))*d

If you don't know your diagonal length but you do know your length and aspect ratio, put this in the calculator:

w=Your TV's length

e=the first part of your aspect radio

f=the second part of the aspect ratio (e.g. with a 16:9 (widescreen) aspect ratio e=16 and f=9)

Your TV's diagonal length using length across=w/(SIN(TAN⁻¹(e/f)))

Your TV's diagonal length using height up and down=w/(COS(TAN⁻¹(e/f)))