MCQ
In Fig. which of the following is a regular polygon? All have equal side except $(i)$
  • A
    $(i)$
  • $(ii)$
  • C
    $(iii)$
  • D
    $(iv)$

Answer

Correct option: B.
$(ii)$

In regular polygon, all sides and angles are equal.
According to the question,
In figure $(i)$, all sides are not equal.
So, it is not a regular polygon.
In figure $(ii)$, it is a square and in square all sides are equal and all angles are of $90^\circ .$
So, it is a regular polygon.
In figure $(iii)$, it is a parallelogram and in parallelogram opposite sides are equal and
opposite angles are equal.
So, it is not a regular polygon.
In figure $(iv)$, all sides are not equal. So, it is not a regular polygon.

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