Question

the 2 angle formed when 2 straight lines intersect at a point and they have a common vertex but no common arm, the 2 angle are called
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Answer 1

Answer:

When two lines intersect each other at one point and the angles opposite to each other are formed with the help of that two intersected lines, then the angles are called vertically opposite angles. Adjacent angles are two coplanar angles that have a common side between them but have no interior points in common.