## Class 9 math (India)

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### Number systems

Irrational numbers
Real number and their decimal expression
operation on real number
simplifying expression
laws of exponents for real number

### Polynomials

polynomial in on variable
Zeroes of a polynomials
Multiplying polynomials
Remainder thorem
factorisation of polynomial
standard identies
algerbraic identities

### Coordinate geometry

cartesian system
plotting point on cartesian plane

### Linear equations in two variables

Solution of linear equation
Graph of a linear equation in two variable

### Lines and angles

pairs of angle
parallel lines and a transversal
line parallel to the same line
Angle sum properties of a triangle
proof :Lines and angle

### Triangles

Triangle
phythagoream theorem
Criteria for congruence triangle
Proof: triangle
Inqualities of a triangle
Proof:  Parallelogram
proof: Rhombs
proof: Kite

### Areas of parallelograms and triangles

Area of parallelograms
Area of triangle
Circles
Circle and its relative terms
Angle subtended by a chord /arc of a circle
perpendicular from the center of a chord
Inscribed shape and problem solving
Surface areas and volumes
Herons formula
cube, cuboid and cylinder
cone and Spheres
Statistics
Bar graphs
Histogram
Mean, mediun, mode and range

### Probability

Experimental probability
probability problem

### COURCE CHALLENGE

Test your knowledge of the skills in this course. Have a test coming up? The Course challenge can help you understand what you need to review.