In △ABC, ∠A+∠B+∠C = 180∘(Sum of all the angles of a is 180∘)
∠A =180∘−(28∘+56∘)
∠A = 96∘
Largest side = BC [As we know that the largest side of a triangle lies opposite to the largest angle (∠A=96∘)]
Smallest side = AC [As we know that the smallest side of a triangle lies opposite to the smallest angle (∠B=28∘)]