What is a Tangent Line to a Circle?

What is a Tangent Line to a Circle?

Note:

What does it mean when a line is tangent to a circle? In this tutorial, you'll learn what a line needs to do to be a tangent line to a circle.

Keywords:

  • definition
  • circle tangent line
  • circle
  • tangent line
  • perpendicular
  • right angle

Background Tutorials

  • Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.

      • What are Perpendicular Lines?What are Perpendicular Lines?

      What are Perpendicular Lines?

      Perpendicular lines have a special property. The angles formed by perpendicular lines will always be the same. Check out this tutorial to learn about perpendicular lines and see a cool trick involving these special lines!

  • Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.

      • What is a Circle?What is a Circle?

      What is a Circle?

      Circles are a fundamental part of math! In this tutorial, you'll be introduced to circles and see the different parts of a circle such as the diameter, radius, and chord. Check out this tutorial to learn about circles!