Think, discuss and write If PQ is a ray, (a) What is its starting point? (b) Where does the point Q lie on the ray? (c) Can we say that Q is the starting point of this ray?

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
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Werry Math-VI
The cross-bars of this window
4.7 Ray
The following are some models for a ray :
Beam of light from
a light house
Ray of light
from a torch
Sun rays
A ray is a portion of a line. It starts at one point (called starting point) and
goes endlessly in a direction.
Look at the diagram (Fig 4.7) of ray shown here. Two points are shown on
the ray. They are
(a)A, the starting point
(6)P, a point on the path of the ray.
We denote it by AP
P.
Think, discuss and write
Fig 4.7
If PQ is a ray,
(a) What is its starting point?
(b) Where does the point Q lie on the ray?
(c) Can we say that Q is the starting point of this ray?
J. K. State Board of School Education
Transcribed Image Text:Werry Math-VI The cross-bars of this window 4.7 Ray The following are some models for a ray : Beam of light from a light house Ray of light from a torch Sun rays A ray is a portion of a line. It starts at one point (called starting point) and goes endlessly in a direction. Look at the diagram (Fig 4.7) of ray shown here. Two points are shown on the ray. They are (a)A, the starting point (6)P, a point on the path of the ray. We denote it by AP P. Think, discuss and write Fig 4.7 If PQ is a ray, (a) What is its starting point? (b) Where does the point Q lie on the ray? (c) Can we say that Q is the starting point of this ray? J. K. State Board of School Education
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