Answer:600
Step-by-step explanation:
The 6 is in the hundreds place, so you in order to round it you would look at the 4. Since 4 is a a number less than 5 you round down. That would mean 600 instead of 700.
Since only 2 sides are equal (not 3), this is an "isosceles triangle."
Click off the first one because 180 (Thea) < 225 (Eleanor). Then keep the second one and click the third and fourth one.
