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A computer monitor is listed as being 17 inches. This is the diagonal across the screen. If the screen measures 10 inches in height, what is the actual width of the screen to the nearest inch?

User Brian Dunn
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diagonal = sqrt(l^ + w^2)

17 = sqrt(10^2 + x^2)

17^2 = 10^2 + x^2

289 = 100 + x^2

189 = x^2

x = sqrt(189) = 13.747

X = 13.75

width is 13.75 inches

User Etliens
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