In △ABC, ∠A and ∠B measure 50∘ and 30∘, respectively. Find the longest side of the triangle.
AB
The sum of interior angles of a triangle is 180∘. Therefore, the measure of ∠C = 180∘ – (50∘ + 30∘) = 100∘
Since, ∠C is the largest angle of the triangle, so, the side opposite to this angle would be the biggest side. Hence, side AB is the longest side of the triangle.