Class 9 Maths practice by chapter

Polynomials

• Remainder theorem and factor theorem
• Factorising by splitting the middle term
• Cube identities
• Value and zeroes of a polynomial

Heron's Formula

• Area of a triangle by Heron's formula

Number Systems

• Rationalising the denominator
• Recurring decimals to fractions
• Simplifying surds
• Rational exponents

Coordinate Geometry

• Quadrants, axes and plotting points

Linear Equations in Two Variables

• Solutions of ax + by = c
• Intercepts of a straight line

Circles

• Angle at the centre and in the same segment
• Cyclic quadrilaterals

Surface Areas and Volumes

• Spheres and hemispheres

Statistics

• Mean from a frequency table
• Range, and how the mean changes

Probability

• Experimental probability

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