If the place to the right of where you are rounding is 5 or higher, you have to round up. If it is 4 or lower, you have to round down. In the hundreds place, there is a 4. That's lower than 5 meaning that you round down/stay. So, the nearest thousands place is 3,000.
Yeah it really be like that sometimes, you gotta try girl
I think its B and D the smallest angle is opposite the small side and the largest angle is opposite the largest side