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Suppose the length of the diagonal of this rectangular television screen is 29 inches and the length of the base of the screen is 21 inches.

4 years ago

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R_scott
(height)^2 = (diagonal)^2 - (base)^2

area = (base) * (height)
4 years ago
oobleck
use the Pythagorean Theorem.
Or recognize one of the basic Pythagorean triples: 20,21,29
4 years ago

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