Question

if the sides of a triangle are a,b,√(a²+ab+b²) then find the Greatest angle​

Answer 1

Answer:

Given sides are, a,b,a2+b2+ab

So the greatest angle will be corresponding to greatest side which is a2+b2+ab

Thus using cosine rule,

cosθ=2aba2+b2−(a2+b2+ab)=−21⇒θmax=1200