A integer for -4 would be +4
42 degrees. Comment down if you need the explanation why
403446 is around 400000 so you round that up in your head. 396755 is close to 400000 so you round that up in your head to. Then you add them together to get 800000, which you can do in your head.
Answer:90 degree
Step-by-step explanation:
Measure its length.