Monica Capoor Solutions for Exercise 4: Checkpoint

A quadrilateral that has four lines of symmetry and the order of rotational symmetry as $4$ is a _____. 

The angle of rotation for rotational symmetry of letter $\mathrm{S}$ is _____ degrees. 

The letter $\mathrm{A}$ has line symmetry but no _____ symmetry.

A geometrical figure that has no line of symmetry, no point of symmetry and no rotational symmetry is _____ triangle.

The point of intersection of angle bisectors is the centre of rotation of an _____ triangle.