Select three out of five alternatives given below which when combined form a…

To determine which three pieces form a complete square, we need to analyze the geometry of each shape and how their angles and side lengths fit together to enclose a square area.

Step-by-Step Analysis
Examine the shapes:

Shape 1: A large, irregular triangle-like shape.

Shape 2: A trapezoid or quadrilateral.

Shape 3: An irregular polygon with multiple angles.

Shape 4: A right-angled or slanted triangle.

Shape 5: A small trapezoid or triangle fragment.

Evaluate Option 4 (1, 2, and 5):

When you combine Shape 1, Shape 2, and Shape 5, you are effectively piecing together the larger angled components (1 and 2) and using the smaller fragment (5) to fill the remaining gap to create the straight edges required for a square.