Can someone HELP me? Not give me the answer but walk me through the problem?? Two girls are standing in a whispering gallery that is shaped like semi-elliptical arch. The height of the arch is 30 feet, and the width is 100 feet. How far from the center of the room should whispering dishes be placed so that the girls can whisper to each other? (Whispering dishes are places at the foci of an ellipse).

Question

Can someone HELP me? Not give me the answer but walk me through the problem?? Two girls are standing in a whispering gallery that is shaped like 	semi-elliptical arch. The height of the arch is 30 feet, and the width is 100 feet. How far from the center of the room should whispering dishes be placed so that the girls can whisper to each other? (Whispering dishes are places at the foci of an ellipse).

retireed · Answer

Here is a drawing, but I need to look up the formula for the foci of ellipses.  


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liaannne · Answer

Oh wow thanks!! :)

liaannne · Answer

Okay so that is the semi elliptical arch, right? So since the "whispering" dishes need to be placed, shouldn't they be placed like in the middle?

retireed · Answer

I really don't think so I think it would placed about here...


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