Line Segment Lengths Secant Chord Tangent

What is a secant line?

• A secant line is a line that does not intersect the curve at all.

• A secant line is a line that intersects a curve at two or more points.

• A secant line is a line that is parallel to the curve.

• A secant line is a line that intersects a curve at only one point.

What is the relationship between a secant line and a tangent line in a circle?

• A tangent line is a special case of a secant line.

• A secant line is always longer than a tangent line.

• A secant line intersects the circle at two points, while a tangent line intersects the circle at only one point.

• A secant line is a special case of a tangent line.

What is the relationship between the lengths of a secant segment and its external segment?

• The length of the secant segment is smaller than the length of its external segment.

• Product of the lengths of the secant segment and its external segment is equal to the product of the lengths of the two segments formed when the secant intersects the circle.

• The length of the secant segment is greater than the length of its external segment.

• The length of the secant segment is equal to the length of its external segment.

What are the properties of a chord in a circle?

• A chord in a circle is a line segment that connects three points on the circle.

• A chord in a circle is a line segment that connects two points on the circle.

• A chord in a circle is a line segment that connects the center of the circle to a point on the circumference.

• A chord in a circle is a line segment that connects two nonadjacent points on the circle.

Solve for x. (Hint: Length of Tangent Lines from the Same External Point)

• 42.4

• 52

• 52.3

• 42

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

• A secant intersects the circle twice; a tangent touches the circle once

• A tangent intersects the circle twice; a secant touches the circle once

• A secant goes through the center of the circle; a tangent does not

• A secant is outside the circle; a tangent is inside the circle

Match the following part of the circle with its correct label.

• Chord

• Radius

• Center

• Diameter

• Point S

• Tangent Line

What is the formula to use when solving for a segment length of intersecting chords in a circle?

• ab=cd

• a(a+b)=c(c+d)

• a+b=c+d

If 2 segments from the same external point are tangent to a circle, then they are_.

• Supplementary

• Congruent

• Complimentary

If a polygon is circumscribed around a circle, then all sides are_.

• Tangent

• Secant

• Supplementary

• Complimentary

• Congruent