2 acute angles because all of the angles of the triangle must add up to 180 degrees. If you used 90 degrees already you only have 90 degrees left to make the other two angles.

**Answer:**

9 rinks

**Step-by-step explanation:**

9 rinks can situate 108 girls and there are 107 so there will be enough if you did any less then there would be girls that couldn't play hokey.

Edit: the remainder represents the number of empty spaces that could be filled in the rink

**Answer:**

y=9x2

y=9x2

**Step-by-step explanation:**