The Class $X$ students of a secondary school in Krishinagar have been allotted a rectangular plot of land for their gardening activity. Saplings of Gulmohar are planted on the boundary at a distance of $1\, m$ from each other. There is a triangular grassy lawn in the plot as shown in the Figure. The students are to sow seeds of flowering plants on the remaining area of the plot. Taking $A$ as origin,find the coordinates of the vertices of the triangle.

(N/A) Taking $A$ as the origin $(0,0)$,we consider $AD$ as the $x$-axis and $AB$ as the $y$-axis.
By observing the grid provided in the figure:
- The point $P$ is located at $4$ units along the $x$-axis and $6$ units along the $y$-axis,so its coordinates are $P(4, 6)$.
- The point $Q$ is located at $3$ units along the $x$-axis and $2$ units along the $y$-axis,so its coordinates are $Q(3, 2)$.
- The point $R$ is located at $6$ units along the $x$-axis and $5$ units along the $y$-axis,so its coordinates are $R(6, 5)$.
Thus,the coordinates of the vertices of the triangle are $P(4, 6)$,$Q(3, 2)$,and $R(6, 5)$.