### Home > PC3 > Chapter 11 > Lesson 11.2.5 > Problem 11-145

11-145.

In the diagram at right, points are plotted on a Cartesian grid. What are the polar coordinates of these points?

Each point should be written in the form is the distance from the point to the origin and

*is the angle of rotation measured counterclockwise from the positive*

*-axis.*

For points and

*, draw a segment from the point to the origin. Use the Pythagorean Theorem to determine*

*r*and inverse tangent to determine

*.*