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Mathematics 14 Online
OpenStudy (anonymous):

https://app31.studyisland.com/pics/21186num1.png (PICTURE) If the square pyramid shown above is sliced by a plane parallel to the base, which of the following best describes the cross-section of the pyramid? https://app31.studyisland.com/pics/21187num1pic2.png W. https://app31.studyisland.com/pics/251656num1pic1.png X. https://app31.studyisland.com/pics/21187num1pic3.png Y. https://app31.studyisland.com/pics/21187num1pic1.png Z. A. W B.Z C.Y D. X PLEASE HELP!! I WILL DO ANYTHING I need this problem correct!!

OpenStudy (anonymous):

Please help, Please!!

jimthompson5910 (jim_thompson5910):

hint: pretend you're looking straight down at the pyramid. You have climbed to the apex (highest point) and you somehow manage to go straight up

OpenStudy (anonymous):

so your looking straight down at the highest point?

jimthompson5910 (jim_thompson5910):

yes, you're looking at that point head on

jimthompson5910 (jim_thompson5910):

what do you see?

OpenStudy (anonymous):

You see the square of the pyramid..

jimthompson5910 (jim_thompson5910):

yep, the square base

jimthompson5910 (jim_thompson5910):

so ANY parallel cross section will also be a square (of varying size, depending on how high you cut the pyramid)

jimthompson5910 (jim_thompson5910):

|dw:1425258345143:dw|

jimthompson5910 (jim_thompson5910):

|dw:1425258411926:dw|

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