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Can someone explain the difference between these 2 diagrams, why one is =180 and why the other is congruent

Can someone explain the difference between these 2 diagrams, why one is =180 and why-example-1

1 Answer

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Answer:

Explanation:

the angle on a straight line measures 180°

the other one is congruent because they are similar triangles

User Ayush Singhal
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