harmonybaddie harmonybaddie

14-09-2014
Mathematics

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In triangle DEF DE equals 5 and measure of angle D is 55 degree's find Fe to the nearest tenth?

In triangle DEF DE equals 5 and measure of angle D is 55 degrees find Fe to the nearest tenth class=

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Аноним Аноним

14-09-2014

[tex]|DE|=5\\|\angle EDF|=55^o\\|FE|=?\\\\tan|\angle EDF|=\frac{|FE|}{|DE|}\\\\tan55^o\approx1.4281\\\\therefore:\\\frac{|FE|}{5}\approx1.4281\Rightarrow|FE|\approx1.4281\times5=7.1405\approx7.1[/tex]

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jerellestrill jerellestrill

29-07-2021

Answer:

7.1

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