NCERT Class 9 Maths Lab Manual - Story of π TITLE Story of π. PRE-REQUISITE KNOWLEDGE Irrational numbers Concept of π (pi) Area of circle and square THEORY Irrational numbers are those numbers which cannot be expressed in the form of , where p and q are integers and q ≠ 0. e.g. √2, √3, √5, √7, etc. The number π (pi) is an irrational number, which … [Read more...] about NCERT Class 9 Maths Lab Manual – Story of π

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## NCERT Class 9 Maths Lab Manual – Heron’s Formula for Area of a Triangle

NCERT Class 9 Maths Lab Manual - Heron's Formula for Area of a Triangle TITLE To develop the Heron's formula for area of a triangle. PRE-REQUISITE KNOWLEDGE Concept of triangle and its perimeter. THEORY A plane figure bounded by three lines sequence is called triangle. The sum of all three sides of a triangle is called perimeter of a triangle. In a right … [Read more...] about NCERT Class 9 Maths Lab Manual – Heron’s Formula for Area of a Triangle

## NCERT Class 9 Maths Lab Manual – Verify the Algebraic Identity (a – b)³ = a³ – b³ – 3ab (a – b)

NCERT Class 9 Maths Lab Manual - Verify the Algebraic Identity (a - b)³ = a³ - b³ - 3ab (a - b) OBJECTIVE To verify the algebraic identity (a - b)³ = a³ - b³ - 3ab (a - b). Materials Required Geometry box Acrylic sheet Scissors Adhesive/Adhesive tape Cutter Prerequisite Knowledge Concept of cuboid and its volume. Concept of cube and its … [Read more...] about NCERT Class 9 Maths Lab Manual – Verify the Algebraic Identity (a – b)³ = a³ – b³ – 3ab (a – b)

## NCERT Class 9 Maths Lab Manual – Verify the Algebraic Identity (a+b)³ = a³+b³+ 3a²b + 3ab²

NCERT Class 9 Maths Lab Manual - Verify the Algebraic Identity (a+b)³ = a³+b³+ 3a²b + 3ab² OBJECTIVE To verify the algebraic identity (a+b)³ = a³+b³+ 3a²b + 3ab². Materials Required Acrylic sheets Adhesive/Adhesive tape Scissors Geometry Box Cutter Prerequisite Knowledge Concept of cuboid and its volume. Concept of cube and its … [Read more...] about NCERT Class 9 Maths Lab Manual – Verify the Algebraic Identity (a+b)³ = a³+b³+ 3a²b + 3ab²

## NCERT Class 9 Maths Lab Manual – Verify that in a Triangle, Longer Side has the Greater Angle

NCERT Class 9 Maths Lab Manual - Verify that in a Triangle, Longer Side has the Greater Angle OBJECTIVE To verify experimentally that in a triangle, the longer side has the greater angle opposite to it. Materials Required Cardboard Coloured glazed papers White paper Tracing paper Scissors Geometry box Sketch pens Adhesive Prerequisite … [Read more...] about NCERT Class 9 Maths Lab Manual – Verify that in a Triangle, Longer Side has the Greater Angle