#### Topics

##### Rational and Irrational Numbers

##### Parallel Lines and Transversal

- Pairs of Lines - Transversal
- Pairs of Lines - Angles Made by a Transversal
- Pairs of Lines - Transversal of Parallel Lines
- Properties of Parallel Lines
- Corresponding Angle Theorem
- Alternate Angles Theorems
- Interior Angle Theorem
- To Draw a Line Parallel to the Given Line Through a Point Outside the Given Line Using Set-square.
- To Draw a Parallel Line to a Given Line at a Given Distance.

##### Indices and Cube Root

- Concept of Exponents
- Multiplying Powers with the Same Base
- Dividing Powers with the Same Base
- Taking Power of a Power
- Multiplying Powers with Different Base and Same Exponents
- Dividing Powers with Different Base and Same Exponents
- Numbers with Exponent Zero, One, Negative Exponents
- Meaning of Numbers with Rational Indices
- Concept of Cube Number
- Concept of Cube Root
- Cube Root Through Prime Factorisation Method

##### Altitudes and Medians of a Triangle

##### Expansion Formulae

##### Factorisation of Algebraic Expressions

##### Variation

##### Quadrilateral : Constructions and Types

- Constructing a Quadrilateral
- Constructing a Quadrilateral When the Lengths of Four Sides and a Diagonal Are Given
- Constructing a Quadrilateral When Two Diagonals and Three Sides Are Given
- Constructing a Quadrilateral When Two Adjacent Sides and Three Angles Are Known
- Constructing a Quadrilateral When Three Sides and Two Included Angles Are Given
- Properties of Rectangle
- Properties of a Square
- Properties of Rhombus
- Properties of a Parallelogram
- Properties of Trapezium
- Properties of Kite

##### Discount and Commission

##### Division of Polynomials

##### Statistics

##### Equations in One Variable

##### Congruence of Triangles

##### Compound Interest

##### Area

##### Surface Area and Volume

##### Circle - Chord and Arc

#### notes

**To draw a parallel line to a given line at a given distance:**

Draw a line parallel to line l at a distance of 2.5 cm.

**Steps of construction: **

- Draw line `l`.
- Take two points A and B on the line `l`.
- Draw perpendiculars to the line `l` from points A and B.
- On the perpendicular lines take points P and Q at a distance of 2.5 cm from A and B respectively.
- Draw line PQ.
- Line PQ is a line parallel to the line `l` at a distance of 2.5 cm.

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