Which of the following shapes can be formed into a cube ?

Given :- four different shapes

To find :- the shape that can be folded into a cube

 A cube is a three-dimensional shape having 6 faces, 12 edges and 8 vertices. All the six faces of a cube are squares of same length i.e. $L=B=H$.

Now, the no. of faces of the above shapes are :-

option A : 6 square faces

option B : 5 square faces

option C : 5 square faces

option D : 5 square faces

Hence, option A is the correct option. It is the only shape that can be formed into a cube as it has 6 squares faces.