$2D$ crystal $A_{3}B($blue for A and yellow for $B)$ is shown in the following figure.

Can you find $6-$fold rotational symmetry? Can you find mirror symmetry? If yes, plot one rotation

center$/$mirror line.

Identify the plane group of this $2D$ crystal. What is its plane lattice type?

Plot the conventional unit cell using the origin specified by the International Table of Crystallography.

$4$: Identify two different glide lines with the help of the International Table of Crystallography.

$5$: Determine the Wyckoff symbols for atom A and B$,$ respectively$\mathrm{.}2$D crystal $A_{3}B($blue for A and yellow for $B)$ is shown in the following figure.

Can you find $6-$fold rotational symmetry? Can you find mirror symmetry? If yes, plot one rotation

center$/$mirror line.

Identify the plane group of this $2D$ crystal. What is its plane lattice type?

Plot the conventional unit cell using the origin specified by the International Table of Crystallography.

$4$: Identify two different glide lines with the help of the International Table of Crystallography.

$5$: Determine the Wyckoff symbols for atom A and B$,$ respectively.