Contents:
1. Mathematics ,Grade 9, Quarter 4 - Module 1: Trigonometric Functions (SOH-CAH-TOAH).
2. Mathematics ,Grade 9, Quarter 4 - Module 2: Trigonometric Functions (csc, sec, cot).
3. Mathematics ,Grade 9, Quarter 4 - Module 3: Trigonometric Ratios of Special Angles.
4. Mathematics ,Grade 9, Quarter 4 - Module 4: Angle Of Elevation.
5. Mathematics ,Grade 9, Quarter 4 - Module 5: Angle Of Depression.
6. Mathematics ,Grade 9, Quarter 4 - Module 6: Problems Involving Right Triangles.
7. Mathematics ,Grade 9, Quarter 4 - Module 7: Law of Sines and Its Applications.
8. Mathematics ,Grade 9, Quarter 4 - Module 8: The Law of Cosines and Its Applications.
9. Mathematics ,Grade 9, Quarter 4 - Module 9: Solve Problems Involving Oblique Triangles.
Objective
Curriculum Information
Education Type
K to 12
Grade Level
Grade 9
Learning Area
Mathematics
Content/Topic
Geometry
Intended Users
Educators, Learners
Competencies
Identifies quadrilaterals that are parallelograms
Determines the conditions that make a quadrilateral a parallelogram
Uses properties to find measures of angles sides and other quantities involving parallelograms
Proves theorems on the different kinds of parallelogram rectangle rhombus square
Proves the midline theorem
Solves problems involving parallelograms trapezoids and kites
Describes a proportion
Applies the fundamental theorems of proportionality to solve problems involving proportions
Illustrates similarity of figures
Proves the conditions for similarity of triangles
Applies the theorems to show that given triangles are similar
Solves problems that involve triangle similarity and right triangles
Illustrates the six trigonometric ratios sine cosine tangent secant cosecant and cotangent
Finds the trigonometric ratios of special angles
Illustrates angles of elevation and angles of depression
Uses trigonometric ratios to solve reallife problems involving right triangles
Illustrates laws of sines and cosines
Solves problems involving oblique triangles
