23rpalmer 23rpalmer 16-11-2020 Mathematics contestada ∠A and \angle B∠B are supplementary angles. If m\angle A=(3x+16)^{\circ}∠A=(3x+16) ∘ and m\angle B=(2x+4)^{\circ}∠B=(2x+4) ∘ , then find the measure of \angle A∠A.