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Maharashtra State BoardSSC (Marathi Semi-English) 9th Standard [इयत्ता ९ वी]
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Syllabus

Rays

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Estimated time: 5 minutes
  • Introduction
  • Definition: Ray
  • Properties and Representation of a Ray
Maharashtra State Board: Class 6

Introduction

What happens when you see light streaming into your room? The light starts at the Sun and travels straight away from it, going forever in one direction until it hits something.

A Ray in geometry works exactly like that light beam. It's a special part of a straight line.

CISCE: Class 6

Definition: Ray

A ray is a portion of a line that begins at a fixed point, called its origin, and extends infinitely in one direction.

Maharashtra State Board: Class 6

Properties and Representation of a Ray

  • A ray has only one end (fixed) point, which is also known as its initial point.
  • A ray extends indefinitely in only one direction. 
  • An unlimited number of rays can be drawn with the same initial point.
  • A ray is a part of a line.
  • A ray starting from point P and passing through Q is denoted by `vec(PQ)`.

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Related QuestionsVIEW ALL [9]

A ray has ______________ end point(s)

Consider the following figure of line \[\overleftrightarrow{MN}\]. Say whether the following statement is true or false in the context of the given figure.

Ray `vec("OP")` is the same as ray `vec("OM")`.

Find out the incorrect statement, if any, in the following:

An angle is formed when we have

  1. two rays with a common end-point 
  2. two line segments with a common end-point 
  3. a ray and a line segment with a common end-point

In this Figure, ∠AYZ = 45°. If point ‘A’ is shifted to point ‘B’ along the ray, then the measure of ∠BYZ is ____________

Consider the following figure of line \[\overleftrightarrow{MN}\]. Say whether the following statement is true or false in the context of the given figure.

M is the point on ray `vec"OP"`.

Consider the following figure of line \[\overleftrightarrow{MN}\]. Say whether the following statement is true or false in the context of the given figure.

Ray `vec("OP")` is different from ray `vec("QP")`.

Consider the following figure of line \[\overleftrightarrow{MN}\]. Say whether the following statement is true or false in the context of the given figure.

Ray `vec("OM")` is not opposite to ray `vec("OP")`.

If two rays intersect, will their point of intersection be the vertex of an angle of which the rays are the two sides?

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