Therefore, since no a and b are given, think of a factor than when the square of the sum of a and b is 100.
1.if a=8, b=6; same as if b=8, a=6
2.if 5 and 5√3
A=25√3/2 or 21.65
3.if 9 and √19
Well, since the values of 8 and 6 are pretty much more maximum or higher than the others, well a=8 or 6 and b=6 or 8. Hope this helps =)
so its like (a,b):(8,6) and (6,8)