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Mathematics 28 Online
OpenStudy (anonymous):

Look at the planes ABCD and EFGH shown below. Which statement is true about the two planes? There are more than two segments along which the planes intersect. They intersect at exactly one segment called MN. There are two segments along which the planes intersect. They intersect at a single point.

OpenStudy (anonymous):

OpenStudy (anonymous):

the figure confuses me.... can someone tell me what to do please!!! help me find the answer

OpenStudy (anonymous):

c

OpenStudy (anonymous):

they intersect at only m and n

OpenStudy (anonymous):

Kat, Do you see the figure above as a 3d object

OpenStudy (anonymous):

these planes intersect more than 2 times @ mandonut

OpenStudy (anonymous):

@mandonut

OpenStudy (anonymous):

yes I do

OpenStudy (anonymous):

its not 3d

OpenStudy (anonymous):

yes it is these are two planes not lines

OpenStudy (anonymous):

and thank you mandonut!!!

OpenStudy (anonymous):

the one plane goes through the other @mandonut

OpenStudy (anonymous):

what even is a man-donut?

OpenStudy (anonymous):

you're correct ... it intersects the line MN but not M AND N

OpenStudy (anonymous):

Kat do you understand or wold you like me to explain?

OpenStudy (anonymous):

so he is right lol

OpenStudy (anonymous):

no he's wrong as he believes they're lines and not planes. He picked the right answer but got super lucky. Anyways to see this, take two papers and put them next to each other

OpenStudy (anonymous):

or better yet grab a book, if you imagines that the front cover extended forever and the back extended forever and you opened it so that it looked like this |dw:1342574813920:dw|

OpenStudy (anonymous):

you can see that the place of intersection would be the seam of the book

OpenStudy (anonymous):

in this case the seam of the book is your segment MN

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