Answer:
n=95
Step-by-step explanation:
To find the angles inside the triangle, subtract the outside angle from 180 to get the inside angle:
180 - 121 = 59
180 - 144 = 36
Then add these values together and subtract that from 180 to get the missing angle corresponding (next to) angle n:
180 - ( 59 + 36 )
180 - 95 = 85
Then subtract that value from 180 to get the value of angle n:
180 - 85 = 95
