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How do I find angle A?

How do I find angle A?-example-1

2 Answers

2 votes

Angle A (6x +11) = 53

12x - 7 = 77

User Ablopez
by
4.6k points
3 votes
50 + 12x - 7 + 6x + 11 = 180
18x + 54 = 180
18x = 126
x = 7 degrees

Angle A = 6x + 11
Angle A = 6(7) + 11
Angle A = 42 + 11
Angle A = 53 degrees
User Hans Doggen
by
5.1k points