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Mathematics 7 Online
OpenStudy (wkep1234):

what is the value of x? First decent answer gets medal

OpenStudy (mathstudent55):

Your link does not show up as a link.

OpenStudy (mathstudent55):

ok

OpenStudy (wkep1234):

there we go

OpenStudy (mathstudent55):

Notice you have 3 horizontal lines that are marked as parallel.

OpenStudy (mathstudent55):

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OpenStudy (wkep1234):

i see

OpenStudy (mathstudent55):

Then you have two kines running up and down. The parallel lines cut off segments int eh two lines running up and down.

OpenStudy (mathstudent55):

|dw:1464712779634:dw|

OpenStudy (mathstudent55):

The segments are marked above 1, 2, 3, and 4.

OpenStudy (mathstudent55):

Here is a theorem: "Three or more parallel lines cut any two transversals into proportional segments."

OpenStudy (wkep1234):

so would it be something like this: 1/2 = 3/4? or would it be 1=3 and 2=4?

OpenStudy (mathstudent55):

Since the horizontal lines are parallel, they cut off proportional segments in the lines running up and down. That means \(\dfrac{1}{2} = \dfrac{3}{4} \) where 1, 2, 3, and 4 are the given lengths of the segments in your figure.

OpenStudy (mathstudent55):

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