Shealah
The coordinates of point R are (3,2) and the coordinates of point T are (4,1). What is the length of RT?



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Shealah
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[1] 2√2
[2] 5√2
[3] 4√3
[4] √10

SheldonEinstein
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@Shealah I recommend you to draw these coordinates on a graph.

SheldonEinstein
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dw:1351130421371:dw
I have drawn a graph for you, can you mark the given points on it?

SheldonEinstein
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@Shealah please reply..

Shealah
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dw:1351130609587:dw

SheldonEinstein
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dw:1351131117784:dw

SheldonEinstein
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But point T = (4,1) NOT (4,1), so mark it again @Shealah

Shealah
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I think that i've got it 5√2, right?

SheldonEinstein
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dw:1351131167712:dw

SheldonEinstein
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Yes.