an angel is generally a supernatural being found in various religions and mythologies. in abrahamic religions and zoroastrianism, angels are often depicted as benevolent celestial beings who act as intermediaries between god or heaven and humanity.
The normal line divides the angle between the incident ray and the reflected ray into two equal angles. The angle between the incident ray and the normal is known as the angle of incidence. The angle between the reflected ray and the normal is known as the angle of reflection.
Other properties of parallelogram:The pairs of parallel sides are congruent.Diagonals bisect each otherConsecutive angles are supplementary whose sum is 180°.Each diagonal separates the parallelogram into two triangles which are congruent.