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I need help I don't understand this.
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I need help I don't understand this.

I need help I don't understand this.-example-1
User Dominic Zukiewicz
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1 Answer

1 vote

9514 1404 393

Answer:

∠4 = 108°

Explanation:

Angles 2 and 4 together form a "linear pair". That is, the sum of them is 180°, a "straight angle." They are supplementary.

∠4 = 180° -∠2 = 180° -72°

∠4 = 108°

User Ithcy
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