Construction of symmetrical figures

Which of the following is not a symmetrical figure?

Along each figure shown below, a line l has been drawn. Complete the symmetrical figures by drawing a figure on the other side such that the line l becomes the line of symmetry:

Constructions|Geometrical Tools Used For Constructions|Constructions Of Angles

Figure shows construction of ____ to line l.

In the following figures, the figure that is not symmetric with respect to any line is:

Construct an orthogonal matrix using the skew- symmetric matrix A=[[0,2],[-2,0]].

The given figure shows a geometrical construction on a grid comprising squares of area 1 square unit each. The area of the geometric figure is

Prove that adjoint of a symmetric matrix is also a symmetric matrix.

Representation of matrix as the sum of symmetric and skew symmetric matrix