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eroshea
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Two isosceles triangles ACB and ADB have a common base AB, and their planes form an angle of 30 degree. Find the distance DE between the vertex D and the plane containing triangle ACB if the height DF of triangle ADB is 16 cm.
> illustration
 2 years ago
 2 years ago
eroshea Group Title
Two isosceles triangles ACB and ADB have a common base AB, and their planes form an angle of 30 degree. Find the distance DE between the vertex D and the plane containing triangle ACB if the height DF of triangle ADB is 16 cm. > illustration
 2 years ago
 2 years ago

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Shadowys Group TitleBest ResponseYou've already chosen the best response.1
dw:1353420552934:dw what is F and E?
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
i don't know where to put them..
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
I have no idea if E and F are points or so...lol
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
DF is the height, this i know
 2 years ago

eroshea Group TitleBest ResponseYou've already chosen the best response.0
dw:1353478033352:dw what i did is like this.. but i don't know if its right
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
dw:1353420791457:dw i think this
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
dw:1353420832791:dw
 2 years ago

Shadowys Group TitleBest ResponseYou've already chosen the best response.1
Yup, that's the one.
 2 years ago
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