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Iiiiiiiiytffhjhffjdjhdhdhdhdhhdhdd
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Iiiiiiiiytffhjhffjdjhdhdhdhdhhdhdd

Iiiiiiiiytffhjhffjdjhdhdhdhdhhdhdd-example-1
User Single Entity
by
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1 Answer

6 votes

Answer:

x = 30

Explanation:

The sum of the 3 interior angles of a triangle = 180°, hence

x + x + 10 + 3x + 20 = 180

5x + 30 = 180 ( subtract 30 from both sides )

5x = 150 ( divide both sides by 5 )

x = 30

User Campino
by
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