We will solve as follows:
From the information given we can deduce that the triangle is Isosceles. We also have from theorem that angles that are opposite to congruent sides are also congruent, therefore angle
Using this, and the fact that the sum o all internal angles of a triangle add to 180°, the following is true:
[tex]V+W+X=180[/tex]
Now, we replace the values we know:
[tex]27+27+X=180\Rightarrow X=126[/tex]
So, the value of angle
