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Mathematics 12 Online
OpenStudy (anonymous):

I will be your fan and I will give a medal!!!!!! My final problem that I am having trouble with!!! Isosceles trapezoid ABCD is constructed with line ZX drawn through its center. If the isosceles trapezoid is dilated using a scale factor of one over three and a line is drawn through the center of the new dilated figure, what relationship will the new line have with line ZX? Explain your reasoning using complete sentences.

OpenStudy (anonymous):

@terenzreignz

OpenStudy (anonymous):

here is what I have so far

OpenStudy (anonymous):

So from constantly just Assuming that it's a continuous line, it would stay the same. But if it's a line segment then it would also dilate with the figure

OpenStudy (anonymous):

yes

terenzreignz (terenzreignz):

Of course. But by what scale factor?

OpenStudy (anonymous):

well, there is no picitre

OpenStudy (anonymous):

1/3

terenzreignz (terenzreignz):

That is right. Essentially, what happens is that the line forms a new polygon, which should still be similar to the new polygon formed with the new (dilated) trapezoid, and should be just as proportional. ^^

OpenStudy (anonymous):

so the postition of the line does not change at all just the sides

OpenStudy (anonymous):

...

terenzreignz (terenzreignz):

just the length.

OpenStudy (anonymous):

what is the relationship with ZX??

OpenStudy (anonymous):

or did I just say that??

OpenStudy (anonymous):

lol

terenzreignz (terenzreignz):

It'd be scaled by the same scale factor.

OpenStudy (anonymous):

so that would be my answer??

terenzreignz (terenzreignz):

Part of it. I reckon this is supposed to be in some essay-like form. Just expound.

OpenStudy (anonymous):

does this sound good??

OpenStudy (anonymous):

So from constantly just Assuming that it's a continuous line, it would stay the same. But if it's a line segment then it would also dilate with the figure. Essentially, what happens is that the line forms a new polygon, which should still be similar to the new polygon formed with the new (dilated) trapezoid, and should be just as proportional. the relationship between ZX and and the line also would be It'd be scaled by the same scale factor.

terenzreignz (terenzreignz):

Just name the line SEGMENT ZX and you're good to go. I don't think there's really a need to bring up the infinite line.

terenzreignz (terenzreignz):

And you copied my words. :P I said use your own words XD

OpenStudy (anonymous):

So from constantly just Assuming that it's a continuous line, it would stay the same. But if it's a line segment then it would also dilate with the figure. Essentially, what happens is that the line forms a new polygon, which should still be similar to the new polygon formed with the new (dilated) trapezoid, and should be just as proportional. the relationship between Segment ZX and and the line also would be It'd be scaled by the same scale factor.

OpenStudy (anonymous):

better

terenzreignz (terenzreignz):

I suppose. Note that I haven't done this stuff in ages, so I guess you'd be wise to seek a second opinion. And again... use your own words XD

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