An advertisement for a portable computer indicates it has a 19-inch viewing screen. This means that the diagonal of the screen measures 19 inches. If the ratio of the length to the width of the screen is 3 to 4, we can represent the length with and the width with
and then use the Pythagorean theorem to solve for
Once we have
the length will be
and the width will be
Find the length and width of this computer screen to the nearest tenth of an inch.
A) Length = 16.2 in., width = 12.4 in.
B) Length = 11.4 in., width = 15.2 in.
C) Length = 16.2 in., width = 10.4 in.
D) Length = 15.2 in., width = 11.4 in.
E) Length = 14.2 in., width = 12.4 in.
Correct Answer:
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