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Mathematics 8 Online
OpenStudy (anonymous):

two isosceles triangles acb and adb have a common base ab and their planes form an angle of 30. find the distance DE between the vertex D and the plane containing triangle acb if the height df of triangle adb is 16 cm

OpenStudy (anonymous):

Why not try first to plot roughly a drawing of what is going on...

OpenStudy (thomas5267):

What is e and f??????

OpenStudy (thepotatoking81):

I have no clue. The main reason why is because I don't know math that well. :D

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