Question

Need help with this..

Answer 1

Explanation:

m4 + m3 = 180 (Supplementary angle on 1 line)

m6 +m3 = 180 (Supplementary angle)

-> m6=m4

-> x+80 = 4x-10

-> 90 = 3x

-> x = 30

-> m6=m4 = 80+30 = 110

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m1+m4 = 180 (Supplementary angle on 1 line)

-> m1 = 180 -110 = 70