702
268
The interior angles of a regular hexagon add up to 720 degrees
To find factors of 28 that add up to 18, we first list the factors of 28: 1, 2, 4, 7, 14, and 28. We then check pairs of these factors to see which add up to 18. The only pair that meets this criterion is 14 and 4, since 14 + 4 = 18. Thus, the factors of 28 that add up to 18 are 14 and 4.
23
-10 & -18
720.
360
They add up to 720 degrees.
91
46
27
-273