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21-10-2019
Mathematics

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The answer these questions are very hard lol

The answer these questions are very hard lol class=

Respuesta :

KurdishPotato KurdishPotato

21-10-2019

Answer:

13

Step-by-step explanation:

2x + 4x + 12 = 90°

6x = 78°

x = 13°

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