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Can someone please help me with this? Geometry by the way

Can someone please help me with this? Geometry by the way-example-1

1 Answer

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Answer:

Step 1: DAB

Step 2: rotated triangle 180° using AC as center of rotation

Step 3: EAC

Step 4: now all 3 angles…

Step 5: a + b + c = 180°

Explanation:

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