The rectangular coordinates of a point are $(-10,0)$. Find the polar coordinates.

The polar coordinates for the point with positive $r$ can be given by (Type an ordered pair. Use angle measures greater than or equal to 0 and less than $2\pi$.)

Step 1 ：The rectangular coordinates of a point are $(-10,0)$. We are asked to find the polar coordinates.

Step 2 ：The polar coordinates of a point in the plane are given by $(r,\theta )$ where $r$ is the distance from the origin to the point and $\theta$ is the angle formed by the positive x-axis and the line segment connecting the origin to the point.

Step 3 ：In this case, the point is $(-10,0)$, which lies on the negative x-axis. The distance from the origin to the point is $10$ (the absolute value of $-10$), and the angle formed by the positive x-axis and the line segment connecting the origin to the point is $\pi$ (or ${180}^{\circ }$) because the point lies on the negative x-axis.

Step 4 ：So, the polar coordinates of the point $(-10,0)$ are $(10,\pi )$.

Step 5 ：Final Answer: The polar coordinates of the point $(-10,0)$ are $\boxed{{\displaystyle (10,\pi )}}$.