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Mathematics 19 Online
OpenStudy (anonymous):

would a line with 3 points have 4 diffrent rays

OpenStudy (ash2326):

|dw:1378871625532:dw| Circles are points

OpenStudy (ash2326):

|dw:1378871661886:dw| Can you tell how many rays are there?

OpenStudy (anonymous):

4?

OpenStudy (ash2326):

A ray has one end point and extends in other direction. Let me show you one ray, see the circled part|dw:1378871786558:dw| This is a ray

OpenStudy (ash2326):

How many more are there?

OpenStudy (anonymous):

6?

OpenStudy (anonymous):

i thought a ray had to have 2 points though ?

OpenStudy (anonymous):

@ash2326

OpenStudy (ash2326):

nope, a ray has one end point and then it extends other side.

OpenStudy (ash2326):

Sorry I was away ;/

OpenStudy (ash2326):

|dw:1378873055764:dw| So how many rays are there totally?

OpenStudy (anonymous):

6? @ash2326

OpenStudy (ash2326):

Ok, let me explain, look at the circled part, it is bounded by two points, it can't extend in neither direction. So it's not a ray|dw:1378874091270:dw|

OpenStudy (ash2326):

However these can extend in one direction ( indicated by arrows) So they are rays. Think of sun rays, they originate from sun and reach here|dw:1378874149915:dw|

OpenStudy (ash2326):

Sun|dw:1378874163036:dw| Sun and three rays

OpenStudy (ash2326):

Do you follow?

OpenStudy (anonymous):

how many rays are u saying there are?

OpenStudy (ash2326):

Look at the figure and tell, I have indicated. Based on your understanding

OpenStudy (anonymous):

are u saying there are only 2?

OpenStudy (ash2326):

yes sir

OpenStudy (anonymous):

yes sir

OpenStudy (anonymous):

theres more than that

OpenStudy (anonymous):

|dw:1378874440402:dw|

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