This is a learning material (module). It contains a detailed discussion on tangents and secants. It helps develop learner's understanding of the relationship between a tangent and the radius of the circle; and how secant and tangent in a circle create other properties particularly on angles that they form.
Objective
1. to define and illustrate tangents and secants
2. to show the relationship between a tangent and a radius of a circle
3. to identify the angles formed by tangents and secants
4. to determine the measures of angles formed by tangents and secants
Curriculum Information
Education Type
K to 12
Grade Level
Grade 10
Learning Area
Mathematics
Content/Topic
Geometry
Intended Users
Learners
Competencies
Derives inductively the relations among chords arcs central angles and inscribed angles
Illustrates secants tangents segments and sectors of a circle
Proves theorems on secants tangents and segments
Solves problems on circles
