The critical piece of information here is that vertical angles are equal.
Therefore solve the equation 5x -3 = 4x +21
Nathan M.
asked • 05/04/20Find the Measure of Angle A.
∠A and ∠B are vertical angles. If m∠A=(5x−3)∘ and m∠B=(4x+21)∘, then find the measure of ∠A.
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