If the sides of a ∆ABC are a, b, a2+ab+b2, then the measure of the largest angle is ____________.

If the sides of a ∆ABC are a, b, a2+ab+b2, then the measure of the l

1.	If the sides of a ∆ABC are a, b, a2+ab+b2, then the measure of the largest angle is ____________.
Answer» If the sides of a ∆ABC are $a, b, \sqrt{a^{2} + a b + b^{2}},$ then the measure of the largest angle is ____________.