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6. GEOMETRY 







6.1 Introduction(Definitions, basic constructions) 






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6.2 Axioms, Postulates and Enunciation on lines(Intercepts Property, Dividing a line in the given ratio) 
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6.3 Theorems on parallel lines 
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6.4 Triangles( Classification/Theorem/ Construction/ Congruency of Triangles, Base Angle Theorem, Postulates on congruent triangles) 
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6.5 Concurrent lines of triangles(Altitudes, Orthocenter, Median, Centroid, Perpendicular, Angular bisectors, Circumcenter, Incenter:Constructions) 
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6.6 Polygons(Construction of inscribed regular polygon) 
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6.7 Quadrilaterals(Properties, construction, Heron's formula for area of triangle, Area of a quadrilateral, Types of quadrilaterals) 
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6.8 Parallelogram(Construction, Area of parallelogram, Construction of Rhombus, Area of Rhombus, Construction of Trapezium, Area of Trapezium, Theorems on parallelograms, Mid point theorem) 
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6.9 Circles  Part 1(Theorems, cyclic quadrilateral, Construction of a cyclic Quadrilateral, Area of circle) 
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6.10 Geometric Solid Figures(Properties, Surface Area of Prisms, Pyramids, Volume of Prisms, Pyramid) 
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6.11 Circles  Part 2(Construction of chords, tangents) 
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6.12 Circles  Part 3(Arcs, Congruency of arcs, Length, Area of arcs) 

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6.13 Theorems on Triangles(Basic proportionality theorem, Theorem on equiangular , similar triangles, Postulates on similar triangles, Pythagoras Theorem,Concurrency theorems, Area of special triangles, size transformation) 
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6.14 Theorems on Circles(Touching circles, Theorem on tangents) 
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6.15 Solid figures(Cylinder, cones, spheres their surface areas, volume) 
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6.16 Scale (Surveyors) Drawing 
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