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Class-10Mathematics

Mathematics | Coordinate Geometry

This chapter deals with the geometry of shapes formed by co-ordinates on a Cartesian plane

Introduction to CBSE Class 10 Mathematics Chapter "Coordinate Geometry"

In “Coordinate Geometry,” CBSE Class 10 students are introduced to the Cartesian coordinate system, which is foundational for graphically representing algebraic equations. The chapter starts by explaining the concept of coordinates, defining the x (abscissa) and y (ordinate) axes that make up the 2D plane.

Students learn how to plot points using ordered pairs and understand the significance of each quadrant in the coordinate plane. The chapter delves into the formulas for distance, section, and area, which are crucial for solving problems related to the distance between two points, dividing a line segment in a given ratio, and finding the area of triangles and polygons within the coordinate plane.

This chapter encourages students to apply their knowledge to determine slopes, intercepts, and forms of linear equations. Through step-by-step explanations and illustrative examples, students grasp how to translate geometric problems into algebraic expressions and find solutions using coordinate geometry.

Assignments for CBSE Class 10 Mathematics Chapter “Coordinate Geometry”

  1. Point Plotting Activity: Plot a list of given points on graph paper and identify which quadrant they belong to.
  2. Distance Formula Exercise: Calculate the distances between various pairs of points and verify them graphically.
  3. Line Segment Division: Use the section formula to find the point that divides a line segment in a given ratio.
  4. Area Calculation: Determine the area of triangles formed by points plotted on the Cartesian plane.
  5. Slope Analysis: Find the slopes of various lines given by their equations and graph them to understand their steepness and direction.

Conclusion The chapter “Coordinate Geometry” is a vital element of the Class 10 Mathematics curriculum, empowering students with the skills to analyze and interpret geometric information through the lens of algebra. Mastery of this chapter lays a robust foundation for further studies in mathematics and related fields, where spatial reasoning and precision are paramount.

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Questions and Answers for CBSE Class 10 Mathematics Chapter "Coordinate Geometry"

  1. Q1: What are coordinates in geometry?
    ANS: Coordinates are a set of values that show an exact position on a two-dimensional plane using an ordered pair (x, y).
  2. Q2: How do you find the distance between two points?
    ANS: The distance between two points (x1, y1) and (x2, y2) can be found using the distance formula: √[(x2 – x1)² + (y2 – y1)²].
  3. Q3: What is the significance of quadrants in coordinate geometry?
    ANS: Quadrants help in categorizing the position of points in the coordinate system into four sections, each with unique sign combinations for x and y coordinates.
  4. Q4: How is the section formula useful in coordinate geometry?
    ANS: The section formula is used to find the coordinates of a point that divides a line segment into a particular ratio, which can be internal or external division.
  5. Q5: Why is the concept of slope important in coordinate geometry?
    ANS: The slope of a line measures its steepness and direction, which is essential in understanding the relationship between two variables represented graphically.
  6. Q6: Can coordinate geometry be used to find the area of complex shapes?
    ANS: Yes, coordinate geometry can be used to find the area of complex shapes by breaking them down into simpler shapes like triangles and rectangles.
  7. Q7: What is the slope-intercept form of a line?
    ANS: The slope-intercept form of a line is y = mx + c, where m is the slope of the line and c is the y-intercept.
  8. Q8: How does the Cartesian plane help in geometry?
    ANS: The Cartesian plane allows for the graphical representation of equations and provides a visual way to solve and understand geometric problems.
  9. Q9: What are the axes in a coordinate plane called?
    ANS: The horizontal axis is called the x-axis, and the vertical axis is called the y-axis.
  10. Q10: How do you plot a point with negative coordinates?
    ANS: To plot a point with negative coordinates, move left from the origin for a negative x-coordinate and move down for a negative y-coordinate.

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