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Triangle ABC is a right triangle, and mC is 78°. What is mA?

Triangle ABC is a right triangle, and mC is 78°. What is mA?
asked 92.6k views
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Triangle ABC is a right triangle, and mC is 78°.


What is mA?

Triangle ABC is a right triangle, and mC is 78°. What is mA?-example-1
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User Buddhi Weerasinghe
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7.9k points

2 Answers

2 votes
Dios es la respuesta!!!
answered
User Jose Da Silva Gomes
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9.1k points
1 vote
the interior sum of a triangle is 180°. and the square in a right angle means it is a 90° angle. so 78+90 is 168. and 180-168 is 12, so its b)
answered
User VolosBlur
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8.0k points
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