Question

How do you convert (28,21) rectangular to polar coordinates?

Answer 1

Polar coordinates have two inputs: magnitude and angle .

Explanation:

The rectangular coordinate `(28,21)` is in Quadrant I. So, make sure the angle is also in that quadrant `(0<=theta<90)`

magnitude `r=sqrt(28^2+21^2)=35`

`theta=tan^-1(21/28)~~36.87^o`

polar `=(35, 36.87^o)`

hope that helped