Vertically Opposite Angles Theorem Vertical angles theorem or Vertically opposite angles theorem states that, If two lines intersect each other, then vertically opposite angles are equal. Given: In the above statement, given that two lines intersect each other, so let AB and CD are two lines intersect each other at O as shown in figure so […]

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Vertical Angles When two lines are intersect they made four angles, angles are opposite to one another at the intersection of two lines. Each opposite pair of angles are called “Vertical Angles”, and vertical angles are always “Congruent” They are also called  “Vertically Opposite Angles”.                      In above […]

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