SOLUTION: A computer monitor is listed as measuring 21 inches this is the distance across the diagonal of the screen. If the screen is 16 inches wide, what is the height of the screen to the

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Question 958459: A computer monitor is listed as measuring 21 inches this is the distance across the diagonal of the screen. If the screen is 16 inches wide, what is the height of the screen to the nearest tenth of an inch
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
a=height; b=width=16 in; c=diagonal=21 in
a%5E2%2Bb%5E2=c%5E2
a%5E2=c%5E2-b%5E2
a%5E2=%2821in%29%5E2-%2816in%29%5E2
a%5E2=441in%5E2-196in%5E2
a%5E2=245in%5E2 Find the square root of each side.
a=15.7in ANSWER: The height is 15.7 inches.