NCERT Solutions for class 10 Maths chapter 7: Coordinate Geometry

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The NCERT solutions for class 10 maths chapter 7 Coordinate Geometry are provided in the article to help students prepare for their class 10 maths board exam. Coordinate Geometry is a branch of geometry that helps in determining the position of points in a plane with the help of ordered pair of numbers called coordinates.

Chapter 7 Coordinate Geometry is a part of Unit 3 Coordinate Geometry as per the class 10 syllabus 2022-23. This chapter carries a weightage of 06 marks in cbse class 10 maths board exam. The important topics from this chapter includes distance formula, section formula and area of a triangle. 

Download: NCERT Solutions for Class 10 Maths Chapter 7 pdf


NCERT Solutions for Class 10 Maths Chapter 7

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Class 10 Maths Chapter 7 Coordinate Geometry: Important Topics

The important topics of chapter 7 coodinate geometry are given below:

  • Distance Formula – In coordinate geometry, distance formula is used to find the distance between two points in a coordinate plane. It is derived with the help of Pythagoras theorem.

Distance formula, for two points say P and Q with coordinates (x1,y1) and (x2,y2) respectively, is given by;

\(PQ = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\)

  • Section Formula – Section formula is used to find the coordinates of the point that divides a line segment into two ratios.

Section formula, for a point P dividing a line segment AB with A (x1,y1) and B (x2,y2) in the ratio m1:m2 , is given by;

\(P(x,y) = (\frac{m_1x_2 + m_2x_1}{m_1 + m_2} , \frac{m_1y_2 + m_2y_1}{m_1 + m_2})\)

  • Area of a Triangle – Area of a Triangle can be calculated when coordinates of the vertices of the triangle are given.

The formula for calculating area of a triangle ABC with vertices A (x1,y1), B (x2,y2) and C (x3,y3) is given by;

\(Area = \frac{1}{2} [x_1(y_2 - y_3) + x_2(y_3 - y_1) + x_3(y_1 - y_2)]\)


NCERT Solutions for Class 10 Maths Chapter 7 Exercises:

The NCERTsolutions of all the exercises of class 10 maths chapter 7 Coordinate Geometry are given below:


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Study Materials for Class 10 Maths:

CBSE X Related Questions

  • 1.
    A trader has three different types of oils of volume \(870 \text{ l}\), \(812 \text{ l}\) and \(638 \text{ l}\). Find the least number of containers of equal size required to store all the oil without getting mixed.


      • 2.
        Prove that: \(\frac{\sec^3 \theta}{\sec^2 \theta - 1} + \frac{\csc^3 \theta}{\csc^2 \theta - 1} = \sec \theta \cdot \csc \theta (\sec \theta + \csc \theta)\)


          • 3.
            Three tennis balls are just packed in a cylindrical jar. If radius of each ball is \(r\), volume of air inside the jar is

              • \(2\pi r^3\)
              • \(3\pi r^3\)
              • \(5\pi r^3\)
              • \(4\pi r^3\)

            • 4.
              A conical cavity of maximum volume is carved out from a wooden solid hemisphere of radius 10 cm. Curved surface area of the cavity carved out is (use \(\pi = 3.14\))

                • \(314 \sqrt{2}\) \(\text{cm}^{2}\)
                • \(314\) \(\text{cm}^{2}\)
                • \(\frac{3140}{3}\) \(\text{cm}^{2}\)
                • \(3140 \sqrt{2}\) \(\text{cm}^{2}\)

              • 5.
                If \(2\tan A = 3\), then value of \(\sec A\) equals

                  • \(\frac{\sqrt{13}}{2}\)
                  • \(\frac{\sqrt{13}}{4}\)
                  • \(\frac{2}{\sqrt{13}}\)
                  • \(\frac{\sqrt{13}}{2}\)

                • 6.
                  In triangles ABC and PQR, \( \angle A = \angle Q \) and \( \angle B = \angle R \), then \( AB : AC \) is equal to :

                    • \( PQ : PR \)
                    • \( PQ : QR \)
                    • \( QR : QP \)
                    • \( PR : QR \)

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