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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 , where 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 .

Points plotted on coordinate plane as follows: point, A, at (3, comma 3), point, B, at (negative 3, comma 0), point C, at (0, comma negative 1), point, D, at (negative 4, comma negative 4).