United University

Geometry Grade 9. Regular polygons. Collection 1

Course Difficulty Icon Intermediate
Course Type Icon Course
Course Duration Icon 10 hours

his interactive course engages Grade 9 students in the study of regular polygons. With hands-on activities, problem-solving practice, and detailed lessons, learners explore the properties of regular polygons, circle-related measurements, and areas of circular figures. The course builds confidence in geometric reasoning and practical application of mathematical concepts.

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This interactive course engages Grade 9 students in the study of regular polygons. With hands-on activities, problem-solving practice, and detailed lessons, learners explore the properties of regular polygons, circle-related measurements, and areas of circular figures. The course builds confidence in geometric reasoning and practical application of mathematical concepts.

Key Features of the Course

  • Interactive learning with geometric tasks and tests
  • Clear explanation of regular polygons and circle-related measurements
  • Focus on visualization, logical reasoning, and real-world application
  • Aligned with curriculum standards for Grade 9 geometry

Course Modules

Module 1: Regular polygons

  • Lesson 15: Regular Polygons. Radius Formulas for Inscribed and Circumscribed Circles
  • Solve problems and complete exercises
  • Solve problems and complete exercises
  • Lesson 16: Circumference and Arc Length
  • Solve problems and complete exercises
  • Solve problems and complete exercises
  • Lesson 17: Area of a Circle and Its Parts
  • Solve problems and complete exercises
  • Solve problems and complete exercises
  • Independent Homework №4 (§§ 15–17)
  • Take the tests
  • Knowledge Review Tasks for §§ 15–17
  • Complete the tasks
  • Practice Exercises for Review of Module 4
  • For § 15
  • For § 16
  • For § 17
  • Key Concepts of Module 4

Expected Learning Outcomes

  • Identify examples of geometric figures mentioned in the content
  • Explain what a polygon and its elements are, area of a polygon, inscribed and circumscribed polygons
  • Formulate definitions of inscribed and circumscribed polygons
  • State theorems on the area of rectangles, parallelograms, triangles, and trapezoids
  • Record and explain area formulas for listed geometric figures
  • Depict and identify polygons and their elements, as well as inscribed and circumscribed polygons
  • Relate geometric figures to real-life objects
  • Calculate the area of figures covered in the course
  • Apply learned definitions, properties, and formulas to solve problems, including real-world area calculations
  • Solve problems involving polygon division and area equivalence analysis

This course blends geometric theory with real-life problem-solving. Students will develop a strong foundation in geometry, enhance their spatial awareness, and be prepared to solve practical and academic mathematical challenges.

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