SOLUTION: High definition television (HDTV) gives consumers a wider viewing area, more like a film screen in a theater. A regular television with a 18-inch diagonal measurement has a screen

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Question 1114131: High definition television (HDTV) gives consumers a wider viewing area, more like a film screen in a theater. A regular television with a 18-inch diagonal measurement has a screen 10.8 in. tall. An HDTV screen with the same 10.8-inch height would have a diagonal measuring 22 in. How many inches wider is the HDTV screen? Round to the nearest hundredth.
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Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Regular:
Width is sqrt%2818%5E2-10.8%5E2%29.

HDTV:
Width is sqrt%2822%5E2-10.8%5E2%29.

Compute each and find the difference.