find the angle

should be A. because 36 plus 144 is 180, and that is the degree of the straight line that both the degrees are on. Hope this helps, whymenotsmart^m^.

The top angle in he triangle is 180^o - 121^o  =  59^o.

The angle in the right corner of the triangle is 180^o - 144^o  =  36^o.

This means that the angle in the left corner of the triangle is 180^o - (59^o + 36^o)  =  85^o                 

To find the value of n^o:  n^o  =  180^o - 85^o  =  95^o.

All exterior angles add up to 360 degrees so we have 360-121-144=95 so our final answer is 95^o