When you add them together you get 238.
Answer:
The error is in the middle: 2(-12) = -24 not 24.
Step-by-step explanation:
As we can notice the shape is a Pentagon. A Pentagon's angles should add up to 540. So we can use simple addition and subtraction to solve.
121 + 108 + 102 + 100 = 431
540 - 431 = 109
109 should be your answer
