Areas

Class 9 · Mathematics · 4 lessons

This chapter, Areas, is part of the Class 9 Mathematics syllabus under CBSE, Telangana and Andhra Pradesh boards. It contains 4 lessons — starting with Introduction to Areas of Plane Figures, Exercise 11.1 — Area of Rectangle, Exercise 11.2 — Parallelograms, and more — each with free, step-by-step PDF notes you can study directly in the browser or present in class in fullscreen mode. Work through the lessons in order below; later exercises in this chapter generally build on the concepts introduced in the earlier ones.

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Introduction to Areas of Plane Figures
Introduction to areas of plane figures.
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Exercise 11.1 — Area of Rectangle
Area of rectangle and area of planar regions.
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Exercise 11.2 — Parallelograms
Parallelograms on the same base and between the same parallels.
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Exercise 11.3 — Triangles
Triangles on the same base and between the same parallels.
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