You must pick the correct one of these equations to use:











Always look at which two sides are involved, whether given or 

asked to find, whether they are ,  or .  



Here, the given side 14 is ADJACENT to the 25° angle, and the side 

to find x is OPPOSITE the 25° angle.  Therefore, we pick the only

equation above that has both ADJACENT and OPPOSITE in it. So we

know to use the third one, for that is the only one of the three

that has both ADJACENT and OPPOSITE.



So we write





 = 



Put a 1 under the left side:



 = 



Now cross multiply:











Now you need a calculator in degree mode:











Edwin



 

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