**CLASS-IX**

**ACTIVITIES ON TRIANGLES****Angle Sum Property of Triangle – Activity****Construction of Circumcircle of a given triangle****Construction of Centroid of a given Triangle****Construction of Incircle of a given triangle****Inequalities in Triangle – Activity 01****Inequalities in Triangle – Activity 02**

**ACTIVITIES ON CONGRUENT TRIANGLESNaming Congruent Triangles 01 with Reasons**

**Naming Congruent Triangles 02 with Reasons**

**Naming Congruent Triangles 03 with Reasons**

**Naming Congruent Triangles 04 with Reasons**

**Naming Congruent Triangles 05 with Reasons**

**Naming Congruent Triangles 06 with Reasons**

**Naming Congruent Triangles 07 with Reasons**

**SAS Congruence of Triangles – Activity****ASA Congruence of Triangles – Activity****SSS Congruence of Triangles – Activity****RHS Congruence of Triangles – Activity****Congruence of triangles – Demonstration****ACTIVITIES ON CIRCLES****Terms related to Circle – Activity****Equal Chords & their Distances from Centre – Activity****Angle subtended by an arc at centre – Activity****Angles in the same segment are equal – Activity****Angles Property of a cyclic quadrilateral – Activity**

**ACTIVITIES ON MENSURATION****Surface Area of Cuboid and Cube – Activity****Surface Area of Right Circular Cylinder – Activity****Volume & Surface Area of a Cone – Activity**

**CLASS-X****ACTIVITIES ON SIMILAR TRIANGLES****Similar Triangles: Dynamic Illustration****AA Similarity Criteria – Activity****SAS Similarity Criteria – Activity****SSS Similarity Criteria – Activity****Pythagoras Theorem – Activity 01****Pythagoras Theorem – Activity 02****ACTIVITIES ON CIRCLES****Properties of Tangents Drawn to Circles – Activity 01****Properties of Tangents Drawn to Circles – Activity 02****Properties of Tangents – Activity cum Demonstration**

**ACTIVITIES ON MENSURATION****Surface Area of Cuboid and Cube – Activity****Surface Area of Right Circular Cylinder – Activity****Volume & Surface Area of a Cone – Activity**