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Can u guys PLEASE answer question 20 ASAP. THIS IS URGENT

Can u guys PLEASE answer question 20 ASAP. THIS IS URGENT-example-1

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Explanation:

Given: line DE || line FG & AN is transversal.


m\angle ABE = m\angle BCG \\ ... (corresponding\:\angle s) \\ \\</p><p>\therefore m\angle BCG = x\\ \\ x + (3x + 40) \degree \: = 180\degree \\ ..(linear \: pair \: \angle s) \\ \\ \therefore \: 4x = 180\degree - 40\degree \\ \\ \therefore \: 4x = 140\degree \\ \\ \therefore \: x = (140\degree )/(4) \\ \\ \huge \red{ \boxed{\therefore \: x = 35\degree }}

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