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triangles, a b 1 to prove 1 2, angle elevation, feet, angle of depression

TRIANGLES

posted by GONE_08 on Jul 11, 2008

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FROM A WINDOW 30 feet above the ground,a building 100 feet high, and at a distance of 200 feet, is observed.find the angle of elevation of the top of the building and the angle of depression of its base.

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Solution #1

posted on Sep 04, 2008

diggity203

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tan x=70/200 => angle of elevation,x is ....

tan y=30/200 => angle of depression, y, is...

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Solution #2

posted on Aug 01, 2008

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FROM A WINDOW 30 feet above the ground,a building 100 feet high, and at a distance of 200 feet, is observed.find the angle of elevation of the top of the building and the angle of depression of its base.

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Solution #3

posted on Jul 14, 2008

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prove root 5 is irrational

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