# Geometry – Grade 9 ICSE

There are few topics covered in this section:

1. Triangles and Mid-point theorem
2. Circles
3. Similarity
4. Pythagoras Theorem
5. Rectilinear Figures & Parallelogram

Click on each topic to know more details.

Triangles and Mid point Theorem
Key topics include:
• Relation between sides and angles of triangles. Types of triangles, Congruent triangles
• Congruency: four cases: SSS, SAS, AAS, RHS. Illustration through cutouts. Simple applications
• Proof and simple applications of mid-point theorem and its converse
• Equal intercept theorem: proof and simple application

Circles
Key topics include:
• Chords
• Arcs

Similarity
Key topics include:
• As a size transformation
• Comparison with congruency, keyword being proportionality
• Three conditions: SSS, SAS, AA. Simple applications
• Applications of Basic Proportionality Theorem
Pythagoras Theorem
Key topics include:
• Proof and Simple applications of Pythagoras Theorem and its converse
Rectilinear Figures & Parallelogram
Key topics include:
• Different kinds of polygons and its names interior and exterior angles and their relations
• Types of regular polygons parallelograms, conditions of parallelograms, Rhombus, Rectangles
• Proof and use of theorems on parallelogram

### Trigonometry – Grade 9 ICSE

We provide theory, MCQs and assignments for each individual topic. Click on the topic...

### Co-ordinate Geometry – Grade 9 ICSE

We provide theory, MCQs and assignments for each individual topic. Click on the topic...

### Algebra – Grade 9 ICSE

There are few topics covered in this section: 1. Expansion and Factorization 2. Changing...

### Mensuration – Grade 9 ICSE

There are few topics covered in this section: 1. Area and Perimeter of a Triangle...