13-03-2016
Mathematics

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Please 16-20. I really have no clue how to do it. Please step by step.

Please 1620 I really have no clue how to do it Please step by step class=

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13-03-2016

16. 40°
17.125°
18.135°
19. x=96° 2x-50=142° x+40=136° x+20=116°
20. x=25° x+40=65° 2x+20=70° 3x=75° 6x=150°

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