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xojade
xojade
18.10.2020 • 
Mathematics

Lines b and a are intersected by line f. At the intersection of lines f and b, the bottom left angle is angle 4 and the bottom right angle is angle 3. At the intersection of lines f and a, the uppercase right angle is angle 1 and the bottom left angle is angle 2. Which set of equations is enough information to prove that lines a and b are parallel lines cut by transversal f?

m∠4 = 110° and m∠3 = 70°
m∠1 = 110° and m∠2 = 110°
m∠1 = 110° and m∠3 = 70°
m∠2 = 110° and m∠3 = 110

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