8. Center
As the location of the center of the circle is (3, 3).
- Therefore, the coordinates of the center are (3, 3)
9. Endpoints of a diameter
As we know that the diameter is the magnitude (often called the length) of the line through the center.
- Please note that the diameter touches two points on the edge of the circle.
- Diameter is often called the longest possible chord.
From the diagram, it is clear that:
- The points of the diameter are (6, 3) and (0, 3).
Also, observe the length of a diameter is 6 units.
10. A point of Tangency
We know that at the point of Tangency, the tangent to a circle will always be perpendicular to the radius.
From the diagram, it is clear that:
- (6, 3) is the point of tangency. Here the tangent is perpendicular to the radius.
11. Endpoints of a chord that is not a diameter
A chord is basically a line that touches two points.
From the diagram, it is clear that:
- The coordinates of the chord other than the diameter are (3, 0) and (0, 3).
12. Endpoints of a radius
We know that a radius is basically a straight line from the center of a circle to the circumference of a circle.
The length of a radius r = diamter length/2
From the diagram, it is clear that:
- The coordinates of the endpoints of the radius are (3, 3) and (6, 3)
