Final answer:
The measure of angle ABD can be determined using the Angle Addition Postulate.
Step-by-step explanation:
The measure of angle ABD can be determined using the Angle Addition Postulate. The Angle Addition Postulate states that if point C lies on the interior of angle ABD, then the measure of angle ABD is equal to the sum of the measures of angle ABC and angle CBD. Therefore, the polynomial that represents the measure of angle ABD is: ABD = ABC + CBD.
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