Saturday, 29 October 2016

Use the law of sines to solve (if possible) the triangle. If two solutions exist, find both. Round your answer to...

The given in the triangle are A=120^o, a=25 and b=25.


To solve using Sine Law, let's use the formula:



Plug-in the values  of the sides a and b. Also, plug-in the value of angle A.



Then, simplify the equation. To simplify, cancel the denominators.





Now two angles of the triangle are known, which are and .


Take note that the sum of three angles of the triangle...

The given in the triangle are A=120^o, a=25 and b=25.


To solve using Sine Law, let's use the formula:



Plug-in the values  of the sides a and b. Also, plug-in the value of angle A.



Then, simplify the equation. To simplify, cancel the denominators.





Now two angles of the triangle are known, which are and .


Take note that the sum of three angles of the triangle is .



However, the sum of these two angles A and B is:



which is larger than .


Therefore, it is not possible to form a triangle with the given measures , and .


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