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December, 2024

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Math problem help(ratios)+++k

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Drew.C
Posts: 1757 - Karma: 39

a mirror is 192 inches from a flagpole. your 27 inches from the mirror. you are 66 inches tall. how tall is the flagpole. this is so simple and i cant get it. i have to find out how tall the flagpole is in feet and inches( ex: 22 ft 6in). o and we arent alowed to use ratios either. thanks guys and +++karma to whoever can help me out.

May 13 2009 12:49PM
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easy_cam_steezy
Posts: 1203 - Karma: 126
i remember these problems from a few years back...
i think you have to make a right angle to the pole form the person, and use arctan/arcsin/arccos and shit like that
can't remember exactly how, but hope that helps a bit
May 13 2009 12:51PM
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Bepo
Posts: 8195 - Karma: 17
does it tell you how tall the flag is in the mirror or give an angle? I feel like its missing something, you either need an angle (trig) or a second measurement of height (ratio)
May 13 2009 1:07PM
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Lateralis
Posts: 1228 - Karma: 332
go to right triangle trig. section 43. question 20 is similar to what your problem is and they have the formula you need to use.  http://www.scribd.com/doc/3290346/Geometry-Skill-Builders
May 13 2009 1:08PM
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steezeandskis
Posts: 646 - Karma: 21
i think you need more info.  If you cant use ratios.
May 13 2009 1:09PM
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