The total number of distinct diagonals that can be drawn in a heptagon is .

All congruent polygon are _____.

Draw a hexagon of equal angles and unequal sides.

In the figure, $ABCDEF$ is a regular hexagon. Prove that $ACDF$ is a rectangle.

The sum of the interior angles of a regular hexagon is_____

(A) $360°$

(B) $540°$

(C) $720°$

(D) $900°$

For a figure to be a polygon , the minimum number of sides should be

Draw a hexagon of equal sides and unequal angles.

In the figure,$ABCDEF$ is a regular hexagon. Prove that $△BDF,$ drawn by joining alternate vertices is equilateral.