Answer:
Step-by-step explanation:
Let the missing angle be x then .,
81 + 62 + x = 180 (being sum of angles of triangle )
143 + x = 180
x = 180 - 143
x = 37
Therefore the missing angle is 37
Answer: 37
Step-by-step explanation:
Interior angles of a triangle add to 180 degrees. 81+ 62 + x = 180
143 + x =180
X = 37
