Polar coordinates

graph4_radian_polar

On your calculator the Pol key (Shift>+) converts from cartesian to polar, and Rec (Shift>−) from polar to cartesian.

pol

Use your calculator to fill in the gaps in the table, and also draw all the points on polar-cartesian graph paper.

polarcartesian

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.

Degrees-amp-Radians-Conversion-Practice