# High School Math : Understanding Polar Coordinates

## Example Questions

### Example Question #5 : Calculus Ii — Integrals

The polar coordinates of a point are . Give its -coordinate in the rectangular coordinate system (nearest hundredth).      Explanation:

Given the polar coordinates , the -coordinate is .  We can find this coordinate by substituting : ### Example Question #2 : Parametric, Polar, And Vector

The polar coordinates of a point are . Give its -coordinate in the rectangular coordinate system (nearest hundredth).      Explanation:

Given the polar coordinates , the -coordinate is . We can find this coordinate by substituting : ### Example Question #1 : Parametric, Polar, And Vector

The polar coordinates of a point are . Give its -coordinate in the rectangular coordinate system (nearest hundredth).      Explanation:

Given the polar coordinates , the -coordinate is . We can find this coordinate by substituting : ### Example Question #6 : Calculus Ii — Integrals

The polar coordinates of a point are . Give its -coordinate in the rectangular coordinate system (nearest hundredth).      Given the polar coordinates , the -coordinate is . We can find this coordinate by substituting :  