# NCERT Solutions For Class 9 Maths

Here on this page we have provided the complete NCERT chapters solutions of Math’s for class IX for all the students who are pursuing their 9th from National Council of Educational Research and Training (NCERT).

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## NCERT Solutions For Class 9 Maths

Something about National Council of Educational Research and Training

National Council of Educational Research and Training (NCERT) is a self-governing organization which was established in 1961 by the Government of India. It was founded to help and advise the Central and State Governments on policies and programmes for excellence development or progress in academic education.

The Main purpose of the NCERT and its component units are to commence, promote and manage research in school education. It publishes its own model textbooks, supplementary material, newsletters, journals and other related literature.

Check Here Detailed: CBSE Class 9 Syllabus

### Chapter wise NCERT Class 9th Details

Chapter 1st: Number Systems

Most of the studenst does not know the actual meaning of number system. So A number system is a system of writing for expressing numbers. It allows us to do different type of operations like addition, subtraction, and division.

Chapter 2nd: Polynomials

Polynomial is made up of two terms namely Poly (meaning “many”) and Nomial (meaning “terms.”). A polynomial can have many terms which consist of Constants such as 1,2,3 etc. Variables such as g,h,x,y etc.

Chapter 3rd: Coordinate Geometry

It a branch of geometry which sets up a definite correspondence between the position of a point in a plane and a pair of algebric numbers called co-ordinates

Chapter 4th: Linear Equations in Two Variable

An equation of the form ax + by + c = 0 where a, b, c are real numbers and x, y are variables, is called a linear equation in two variables.

Chapter 5th: Introduction to Euclid’s Geometry

The word ‘geometry’ comes from the Greek words ‘geo’, meaning the ‘earth’, and ‘metrein’, meaning ‘to measure’. Pythagoras and his group discovered many geometric properties and developed the theory of geometry to a great extent. This process continued till 300 BC. At that time Euclid, a teacher of mathematics at Alexandria in Egypt, collected all the known work and arranged it in his famous treatise.

Chapter 6th: Lines and Angles

A line is a collection of points along a straight path. A line extends in both the directions and has no endpoints. It has no definite length.

Two rays originating from the same end point form an angle.

Chapter 7th: Triangle

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry.

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A quadrilateral is a closed figure obtained by joining four point (with no three points collinear) in an order.

Chapter 9th: Areas of Parallelograms and Triangles

Opposite sides of a parallelogram are parallel (by definition) and so will never intersect. The area of a parallelogram is twice the area of a triangle created by one of its diagonals.

Chapter 10th: Circles

A circle is defined as the collection of all the points in a plane that are at equal distance from a given fixed point in the plane. This fixed point is called the centre of the circle and the fixed distance is called the radius of the circle.

Chapter 11th: Constructions

To draw a shape, line or angle accurately using a compass and straightedge (ruler) and protractor and triangle.

Chapter 12th: Heron’s Formula

Heron’s formula is a formula that can be used to find the area of a triangle, when given its three side lengths

Chapter 13th: Surface Areas and Volumes

The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedral for which the surface area is the sum of the areas of its faces.

Chapter 14th: Statistics

The practice or science of collecting and analysing numerical data in large quantities especially for the purpose of inferring proportions in a whole from those in a representative sample

Chapter 15th: Probability

The extent to which an event is likely to occur, measured by the ratio of the favourable cases to the whole number of cases possible

NCERT Solutions For Class 9 Maths

NCERT provides a highly uncompetitive society for administrators that promote networking, association structure, mentoring and the allocation of best practices. The solutions of NCERT class 9th Maths chapters which are given on this page in the form of PDF are very helpful to those candidates who are preparing for the examination.

The NCERT Solutions For Class 9 Maths provided on this page by the team of recruitmentresult.com are very helpful for candidates to rectify their mistakes and correct them by using the given solutions.