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How many planes appear in this figure? Name three points that are collinear. Are points a, b, c, and d coplanar? Explain. At what does and ca interest db

How many planes appear in this figure? Name three points that are collinear. Are points-example-1
User Rofrol
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D, B, and A are collinear. Yes they are coplanar because they all lay on the same plane. And I don’t understand the last question
User Riteshmeher
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