Asquare has exactly 4 congruent sides and 4 congruent angles. which shows the statement written as a biconditional statement? ( don't be mean, i'm already sad as it is)] a) if a figure is a square, then it has exactly 4 congruent sides and 4 congruent angels. b) if a figure has exactly 4 congruent sides and 4 congruent angles, then it is a square. c) a figure is a square if and only it has exactly 4 congruent sides and 4 congruent angles. d) if a figure is a square, then it is a rectangle.