$\"\"$

On a polar grid the points $\"\"$ and $\"\"$ with $\"\"$ .

Distance between $\"\"$ and $\"\"$ is $\"\"$ .

$\"\"$

Square on both sides.

$\"\"$

This relationship indicates that the line segment $\"\"$ is the hypotenuse of the right triangle formed using these two points and the origin as vertices.

$\"\"$

This relationship indicates that the line segment $\"\"$ is the hypotenuse of the right triangle formed using these two points and the origin as vertices.

$\"\"$ .