Math, asked by arissakharel462, 10 months ago

Find unknown sizes of the angles:

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Answers

Answered by PihuChugh

1

Answer:

Step-by-step explanation:

Exterior angle of triangle = 360'

3x + 2x + 4x = 360'

9x = 360'

x = 360' / 9

x = 40'

therefore , 2x = 80'

3x = 120'

4x = 160'

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