The point in polar co-ordinates is .

Graph :

1). Draw a rectangular coordinate plane.

2). Plot the polar point .

Graph the point in rectangle coordinates.

3). Observe the above graph, the -coordinate of the point lies between .

4). It is appears to be .

5). Observe the above graph, the -coordinate of the point lies between .

6). It is appears to be .

7). Thus, the rectangle coordinates for the polar point is .

The rectangle coordinates for the polar point is .