Correct option is (A) Each angle in a rectangle is 90°
(A) Each angle in a rectangle is \(90^\circ.\) This statement is a correct statement.
(B) Rhombus will have 4 sides. Thus, given statement 'Rhombus will have 5 sides' is a wrong statement.
(C) \(\because\) A Quadrilateral has two diagonals
\(\therefore\) 'A Quadrilateral has three diagonals' is a wrong statement.
(D) \(\because\) Each angle in a square is \(90^\circ.\)
\(\therefore\) 'Each angle in a square is \(50^\circ\)' is a wrong statement.
