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Mathematics 11 Online
OpenStudy (anonymous):

How do I solve this? Isosceles trapezoid ABCD is shown below with a line EF drawn through its center. If the isosceles trapezoid is dilated using a scale factor of 1/2 and a line is drawn through the center of the new dilated figure, what relationship will that line have with line EF in the drawing below?

OpenStudy (anonymous):

OpenStudy (anonymous):

wont it be the same line

OpenStudy (anonymous):

I have no idea, that's why I'm asking

OpenStudy (anonymous):

|dw:1402320047181:dw|

OpenStudy (anonymous):

|dw:1402320094048:dw|

OpenStudy (anonymous):

My answer has to be in paragraph form so can you help me make one

OpenStudy (anonymous):

o_o idk whats paragraph form @ganeshie8

ganeshie8 (ganeshie8):

Before dilation : E = (-1.5, 0) F = (1.5, 0) After dilation by a scale factor of 1/2 : E' = (-0.75, 0) F' = (0.75, 0) Since the y coordinates of image and preimage are both 0, they lie on x axis. So EF and E'F' lie on the x axis. EF and E'F' are overlapping lines.

ganeshie8 (ganeshie8):

You need to rephrase it and add more words :)

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