BBARK20112GO BBARK20112GO Mathematics Answered In triangle ABC, m∠A=(2x+2)∘, m∠C=54∘, and the exterior angle at B is (4x)∘. Triangle A B C. Angle A is 2 X plus 2 degrees, angle C is 54 degrees, & the exterior angle at B is 4 X degrees. © 2020 StrongMind. Created using GeoGebra. What is the measure of angle A? 58∘ 112∘ 28∘ 68∘