On your calculator the Pol key (Shift>+) converts from cartesian to polar, and Rec (Shift>−) from polar to cartesian.
Use your calculator to fill in the gaps in the table, and also draw all the points on polarcartesian graph paper.
Polar coordinates of point 
(x,y) coordinates of point 
(0,0) 

(5,0) 

(1, π/2) 

(2, π/4) 

(1,0) 

(0,1) 

(1,1) 
Do the “degrees and radians” worksheet.