Seudónimo Seudónimo

04-09-2021
Mathematics

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PLZ HELP!! I REWARD BRAINLIEST. plz no silly answers i grinded for these points

PLZ HELP I REWARD BRAINLIEST plz no silly answers i grinded for these points class=

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mhanifa mhanifa

04-09-2021

Answer:

180° - 1/2(α + β)

Step-by-step explanation:

The two angles of the triangle ADB are:

m∠A/2 and m∠B/2 or
α/2 and β/2

The three interior angles add to 180°, so the missing angle is:

m∠ADB = 180° - 1/2(α + β)

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