Which of the following shapes has all four sides equal?
(A) Square (B) Parallelogram (C) Rectangle (D) None of these
A square is a rectangle with four equal sides.
Which of the following need not have equal diagonals?
(A) Square (B) Rectangle (C) Parallelogram (D) None of these
Combine these two statements using, 'if and only if'
p:If a rectangle is a square, then all its four sides are equal.
q:If all the four sides of a rectangle are equal, then the rectangle is a square.