heathertenezaca heathertenezaca

09-03-2021
Mathematics

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PLease Help Will Mrk Brainliest

PLease Help Will Mrk Brainliest class=

Respuesta :

Maddey24 Maddey24

10-03-2021

Answer:

x=81°

Step-by-step explanation:

The sum of all angles in a triangle is 180°

57+42=99

180-99=81

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