Answer:
I don't know it's very hart
Answer:
C IS THE ANS COS ALL POLYGONS ARE CLOSED AND IF IT NOT CLOSED IT NOT A POLYGON
All you do is use the a+b=c formula lets plug it in
15+b=35
15+20=35
35=35
The answer is 20
Answer: <less than >greater than ≥ greater than or equal to ≤ less than or equal to
Step-by-step explanation: