Share & grow the world's knowledge!
We want to connect the people who have knowledge to the people who need it, to bring together people with different perspectives so they can understand each other better, and to empower everyone to share their knowledge.
What has remained the same and what has changed with this reflection?
When a figure is reflected, its dimensions and area remain identical, meaning the shape is congruent to the original. If reflected across the y-axis, the y-coordinates stay the same, but the x-coordinates change their sign (positive becomes negative). The orientation also changes, effectively "flippRead more
When a figure is reflected, its dimensions and area remain identical, meaning the shape is congruent to the original. If reflected across the y-axis, the y-coordinates stay the same, but the x-coordinates change their sign (positive becomes negative). The orientation also changes, effectively “flipping” the image. For example, a point at (3, 4) reflected across the y-axis moves to (–3, 4). The vertical height stays the same while the horizontal side flips.
For Detailed Solutions:
Visit NCERT Solutions for Class 9 Ganita Manjari Chapter 1 Orienting Yourself: The Use of Coordinates Question Answer:
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-1/
See lessCan these distances help you find the distance AD?
The horizontal and vertical distances form the two legs of a right-angled triangle, with AD as the hypotenuse. According to the Baudhāyana-Pythagoras Theorem, the square of the distance AD is equal to the sum of the squares of the other two sides. In this case, 4 squared (16) plus 3 squared (9) equaRead more
The horizontal and vertical distances form the two legs of a right-angled triangle, with AD as the hypotenuse. According to the Baudhāyana-Pythagoras Theorem, the square of the distance AD is equal to the sum of the squares of the other two sides. In this case, 4 squared (16) plus 3 squared (9) equals 25. Taking the square root of 25 gives a direct distance of 5 units for AD.
For Detailed Solutions:
Visit NCERT Solutions for Class 9 Ganita Manjari Chapter 1 Orienting Yourself: The Use of Coordinates Question Answer:
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-1/
See lessPoint W has x-coordinate equal to – 5. Can you predict the coordinates of point H which is on the line through W parallel to the y-axis? Which quadrants can H lie in?
Any line parallel to the vertical y-axis consists of points that all share the same x-coordinate. Since point W has an x-coordinate of –5, any point H on this parallel line must also have an x-coordinate of –5, resulting in coordinates of the form (–5, y). Depending on the value of y, point H will lRead more
Any line parallel to the vertical y-axis consists of points that all share the same x-coordinate. Since point W has an x-coordinate of –5, any point H on this parallel line must also have an x-coordinate of –5, resulting in coordinates of the form (–5, y). Depending on the value of y, point H will lie in Quadrant II if the y-coordinate is positive or in Quadrant III if it is negative.
For Detailed Solutions:
Visit NCERT Solutions for Class 9 Ganita Manjari Chapter 1 Orienting Yourself: The Use of Coordinates Question Answer:
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-1/
See lessWhat are the x-coordinate and y-coordinate of the point of intersection of the two.
In a 2-D Cartesian coordinate system, the position of any point is determined by two perpendicular lines. The horizontal line is the x-axis and the vertical line is the y-axis. These two axes cross each other at a unique point known as the origin. At the origin, no distance has been moved along eithRead more
In a 2-D Cartesian coordinate system, the position of any point is determined by two perpendicular lines. The horizontal line is the x-axis and the vertical line is the y-axis. These two axes cross each other at a unique point known as the origin. At the origin, no distance has been moved along either axis, so the x-coordinate and y-coordinate are both 0, represented as (0, 0).
For Detailed Solutions:
Visit NCERT Solutions for Class 9 Ganita Manjari Chapter 1 Orienting Yourself: The Use of Coordinates Question Answer:
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-1/
See lessWould these observations be the same if ΔADM is reflected in the x-axis (instead of the y-axis)?
The core principles of reflection remain consistent, but the results would be mirrored vertically. If reflected across the x-axis, all x-coordinates of the triangle's vertices would remain unchanged, while all y-coordinates would switch to their opposites (positive to negative). The size and shape wRead more
The core principles of reflection remain consistent, but the results would be mirrored vertically. If reflected across the x-axis, all x-coordinates of the triangle’s vertices would remain unchanged, while all y-coordinates would switch to their opposites (positive to negative). The size and shape would still be preserved, but the triangle would appear upside down compared to its original position, rather than flipped left-to-right as it was in the y-axis reflection.
For Detailed Solutions:
Visit NCERT Solutions for Class 9 Ganita Manjari Chapter 1 Orienting Yourself: The Use of Coordinates Question Answer:
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-1/
See less