June 2019
Problem of the Month
TV Viewing Distance
In the September 2018 issue of the AARP magazine, the following instructions were given to determine the size of an HD TV that you should buy:
Measure your viewing distance in feet.
Divide by 1.6, then multiply by 12.
That's the optimal screen size in inches.
Convert those instructions into a formula for D in terms of I
where
D = Ideal TV viewing distance in inches
I = Diagonal of your television in inches
Now determine the optimal size HD TV if you sit 8 feet away.
If you bought a 48" TV, how far away should you sit?
Solution to the Problem:
The formula is D = 1.6 x I
If D = 8 feet or 96 inches, then you should buy a 60 inch HD TV.
If I = 48", then you should sit 76.8 inches or 6.4 feet away.