Tv screen

The length of its diagonal gives the size of a tv screen. If the dimension of a tv screen is 16 inches by 14 inches, what is the TV screen size?

Correct answer:

u =  21.2603 inch

Step-by-step explanation:

a=16 inch b=14 inch u=a2+b2=162+142=2 113=21.2603 inch

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