Respuesta :

The answer is 54 degrees becuase all the interior angles add to be 180 degrees so you do 180-72 which equals to 108 and then you divide 108 by two becuase you have two congruent angles and it solves to be 54 degrees

mpanderla95

To solve for y simply remember that the sum of all angles in any triangle add up to 180 degrees, and as such, you would simply add up all of the sides of the triangle and make it equal to 180, then solve for y.


2y + 72 = 180

2y = 180 - 72

2y = 110 - 2

2y = 108

Y = 108/2 = 54 degrees.

The solution is B.










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