When two straight lines intersect, one of the angles is 86 degrees, find the other angles.

1. Since at the intersection of two straight lines two pairs of vertical angles are formed, then the second angle will also be equal to 86˚.

2. Find the second pair of vertical angles 180˚ – 86˚ = 94˚, that is, each angle of the second pair is equal to 94˚.

Answer: the rest of the angles formed at the intersection of two straight lines are equal to 86˚, 94˚, 94˚.



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