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※ Download: Maths ppt for class 9 on lines and angles

There is truly something for everyone! That's all free as well! If angles forming a linear pair are equal, the measure of each angle formed will be equal to 90 ° since the lines will be perpendicular to each other.

maths ppt for class 9 on lines and angles

For the two lines to be parallel, any pair of corresponding angles made by the transversal should be equal, or any pair of adjacent angles on the same side of the transversal will be supplementary. The length of the common perpendiculars at different points on these parallel lines is same. A, O, B are collinear Linear Pair Axiom. This equal length is called the distance between two parallel lines.

maths ppt for class 9 on lines and angles

Maths Project Class 9 Ppt - For a small fee you can get the industry's best online privacy or publicly promote your presentations and slide shows with top rankings. If two lines intersect, and if one pair of vertically opposite angles formed are acute, then the other pair will be obtuse since the sum of the four angles will be 360 °.

maths ppt for class 9 on lines and angles

The rays making an angle are mahhs the arms of the angle and the end-points are called the vertex of the angle. Types of Angles: i Acute angle: An angle whose measure lies between 0° and 90°, is called an acute angle. When the two angles are adjacent, then their sum is always equal to the angle formed by two non-common arms. Here are angkes pairs of vertically opposite angles. The vertically opposite angles are always equal. Parallel lines: If two lines do not meet at a point if extended to both directions, such lines are called parallel lines. The length of the common perpendiculars at different points on these parallel lines is same. This equal length is called the distance between two parallel lines. Axiom 1 If a ray stands on a line, then the sum of two adjacent angles so formed is 180º. Conversely if the sum of two adjacent angles is 180º, then a ray stands on a line i. Axiom 2 If the sum of two adjacent angles is 180º, then the non-common arms of the angles form a line. It is called Linear Pair Axiom. Theorem 1: If two lines intersect each other, then the vertically opposite angles are equal.

CBSE Class 9 Math Introductory Video: Lines and Angles (Meritnation.com)
Axiom 2 If the sum of two adjacent angles is 180º, then the non-common arms of the angles form a line. Which of the following statements are true T and which are false F? That's all free as well! Most of the presentations and slideshows on PowerShow. Or use it to upload your own PowerPoint slides so you can share them with your teachers, class, students, bosses, employees, customers, potential investors or the world. If angles forming a linear pair are equal, the measure of each angle formed will be equal to 90 ° since the lines will be perpendicular to each other. Multiple Choice Questions Short Answer Questions with Reasoning Short Answer Type Questions Long Answer Type Questions Answers to Multiple Choice Questions 1. Class 10th is the most important juncture of students life, Where studies stand at the foremost amongst other priorities. We'll even convert your presentations and slide shows into the universal Flash format with all their original multimedia glory, including animation, 2D and 3D transition effects, embedded music or other audio, or even video embedded in slides. Two lines perpendicular to the same line are parallel to each other. This is a completely free site and requires no registration. But aside from that it's free.