What is the difference between a secant and tangent line

The video tutorial explains the differences between tangent and secant lines in the context of circles. A tangent line intersects a circle at exactly one point and is perpendicular to the radius at that point. In contrast, a secant line intersects the circle at two points. The tutorial provides definitions and properties of these lines to help students understand their roles in geometry.

What is the primary focus of the class before introducing lines in circles?

• Polygons and vertices

• Triangles and squares

• Lines and points

• Angles and arcs

How many points does a tangent line intersect a circle?

• Two points

• One point

• Three points

• Four points

What is a key property of a tangent line in relation to the radius?

• Perpendicular to the radius

• Equal to the radius

• Tangent to the radius

• Parallel to the radius

How many times does a secant line intersect a circle?

• Three times

• Four times

• Twice

• Once

What is the main difference between a tangent and a secant line?

• A tangent line is inside the circle, a secant is outside

• A tangent line is parallel to the radius, a secant is not

• A tangent line intersects at two points, a secant at one

• A tangent line intersects at one point, a secant at two