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Mathematics 17 Online
OpenStudy (angela210793):

Is there any way how to find the height of a parallelogram when all u know is : AC=A'C'=4 and AA'=CC'=5

OpenStudy (anonymous):

send the figure if possible...

OpenStudy (angela210793):

kk..w8 a sec pls :)

OpenStudy (angela210793):

find the side surface

OpenStudy (angela210793):

I know that the side surface is perimeter *h but i can't find h :(:(

OpenStudy (a_clan):

this is a 3D figure

OpenStudy (angela210793):

yea

OpenStudy (anonymous):

height of which parallelogram ??? pls recheck yr question......

OpenStudy (anonymous):

is it height of prism???

OpenStudy (a_clan):

A' B' C' are projections of A B C

OpenStudy (angela210793):

ACC'A' wouldn't it be the same?

OpenStudy (a_clan):

it is rectangle

OpenStudy (angela210793):

hmmm...AA' isn't perpendicular with the plan(ABC) but if it is a rectangle than my problem is solved......why do u say it is a rectangle?

OpenStudy (a_clan):

Because the name A' B' C' signifies that these are nothing but the 90 degree projections

OpenStudy (angela210793):

:(:(:( Idk the word in english but i would have explained it..let me google a bit :)

OpenStudy (a_clan):

This 3 D figure contains 3 rectangles and 2 triangles. Now surface area, volume anything can be found .

OpenStudy (angela210793):

How can they be rectangles whn my problem says that AA' isn't perpendicular with the plan of (ABC)?

OpenStudy (a_clan):

Because the name A' B' C' signifies that these are nothing but the 90 degree projections

OpenStudy (angela210793):

I think ur right

OpenStudy (a_clan):

naming convention

OpenStudy (angela210793):

Thanks a loot :) ^_^

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