SOLUTION: What does it mean to refer to a 20-inch tv set or a 25-inch tv set? Such units refer to the diagonal of the screen. A 30-inch tv set also has a width of 24 inches. What is its heig
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Question 199287: What does it mean to refer to a 20-inch tv set or a 25-inch tv set? Such units refer to the diagonal of the screen. A 30-inch tv set also has a width of 24 inches. What is its height?
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
use the pythagorean relationship
a^2+b^2=c^2
24^2+b^2=30^2
576+b^2=900
b^2=900-576
b=18
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