Question

after you enter your answer press go. y =

Explanation:

Step1: Find interior - angles adjacent to given exterior - angles

The interior - angle adjacent to the $119^{\circ}$ exterior - angle is $180 - 119=61^{\circ}$ (linear - pair of angles).
The interior - angle adjacent to the $87^{\circ}$ exterior - angle is $180 - 87 = 93^{\circ}$ (linear - pair of angles).

Step2: Use the angle - sum property of a triangle

In a triangle, the sum of interior angles is $180^{\circ}$. Let the third angle be $y$.
We have $61+93 + y=180$.
Combining like terms: $154 + y=180$.
Subtracting 154 from both sides: $y=180 - 154=32^{\circ}$.

Answer:

$32$