Answer:
17 acres
Step-by-step explanation:
9 acres + 8 acres = 17 acres, if that wasn't what the question meant please let me know and I'll change the answer or try to help clear confusion.
It is a little less than 90 degrees, which is a right angle, so it will be more acute
The answer is the top answer
Yes they are congruent because it’s just a reflection across the y-axis you aren’t making it smaller or larger