gabrieladriancaldero gabrieladriancaldero

20-06-2020
Mathematics

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devishri1977 devishri1977

20-06-2020

Answer:

∠ABD = 20

Step-by-step explanation:

BD is the angle bisector, ∠ABD = ∠CBD

∠ABD + ∠CBD = 40

∠ABD + ∠ABD = 40

2∠ABD = 40

∠ABD = 40/2

∠ABD = 20

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