Find unknown sizes of the angles: – InterviewSolution

1.	Find unknown sizes of the angles:
Answer» Step-by-step explanation:EXTERIOR ANGLE of triangle = 360'3x + 2X + 4x = 360'9x = 360'x = 360' / 9x = 40'therefore , 2x = 80' 3x = 120' 4x = 160'

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