the no. of lines of symmetry of an 'n' sided figure... want it urgently within a minute....

For a *n*-sided figure and if *n* is odd, then there is a line of symmetry from each vertex perpendicular to the opposite side.

So, we have *n* vertices, hence *n* lines of symmetry.

For a *n*-sided figure and if *n* is even, then there are two types of lines of symmetry. There are lines of symmetry connecting opposite vertices and another lines of symmetry that are perpendicular bisectors of opposite sides. So, in total, we have *n* lines of symmetry.

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