In triangle ( A B C, m angle A=(2 x+2)^{circ}, m angle C=54^{circ} ), and the exterior angle at ( B ) is ( (4 x)^{circ} ). What is the measure of angle ( A ) ? ( 58^{circ} ) ( 28^{circ} ) ( 68^{circ} ) ( 112^{circ} )
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Step 1: Identify the exterior angle in the triangle, which is given as 4X. Show more…
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