(9,270)

What are the rectangular coordinates of the same point

I guess those are radius and angle in degrees ?

If so
270 deg is straight down the negative y axis
( 0 , -9 )

The rectangular coordinates of the point (9,270) remain the same as (9,270).

The rectangular coordinates of a point are given in the form (x, y), where x represents the horizontal distance from the origin and y represents the vertical distance from the origin. In this case, the given point is (9, 270), so the horizontal distance from the origin is 9 and the vertical distance from the origin is 270. Therefore, the rectangular coordinates of the same point are (9, 270).