Line Intersects Circle at Most Twice
Read this topicExplanations 7
- A line is either a secant, a tangent, or has no relationship with a circle. If it has no relationship it obviously has no intersections, and if it is tangent it has 1 intersecti…
By Hyunwoo (David) Lee
- Typically, given a line in a plane and a circle, the line will intersect the circle at 000 or 222 points. Let's take the case when a line hits a circle at two points. Say the li…
By Vincent Huang
- Chords are segments with endpoints in the circle as shown below in red: A chord can also be a diameter. Secants are lines that pass through the circle exactly twice.
By Bella Cullen, Alex Federspiel
- Radii is the plural form of radius. For your info, this is a radius: A circle can have many radii. A tangent touches a circle at one point. You can see from the diagram that the…
By Bella Cullen, Freya Edholm
- A line can intersect a circle in 0, 1, or 2 points.
By Freya Edholm
- The cases for 0, 1, and 2 intersections, respectively, no intersection, tangent, and secant, are all fairly well defined. So the question is: Can a line intersect a circle at mo…
By Winston Ou
- A chord is a line totally inside a circle, with no points at all outside the circle's circumference. Here is a picture of a chord XYXYXY: A secant is a line running right throug…
By Vivian Loh, Victor Wang