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In right triangle DEF, we have angle D = 25 degrees, anlge E = 90 degrees, and EF = 19 . Find DE to the nearest tenth. You may use a calculator for this problem.

 Apr 12, 2022
 #1
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D

 

E             F

 

cot D  =  DE / EF

 

cot 25°  =  DE  / 19

 

19 * cot 25°  = DE  ≈   40.7   

 

 

cool cool cool

 Apr 12, 2022

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