As in the diagram,let A,B,C,D be the centers of the 4 balls in the bottom layer,and A',B',C',D' be the center of the 4 balls in the upper layer.then A,B,C,D and A',B',C',D' are the 4 vertice of the squares of length 2cm,respectively, now the circumscribed circles with centers O and O' of the squares constitue the base of another cylinder,and projecting point A' on the bottom base is the middle point M of arc AB

Question

As in the diagram,let A,B,C,D be the centers of the 4 balls in the bottom layer,and A',B',C',D' be the center of the 4 balls in the upper layer.then A,B,C,D and A',B',C',D' are the 4 vertice of the squares of length 2cm,respectively, now the circumscribed circles with centers O and O' of the squares constitue the base of another cylinder,and projecting point A' on the bottom base is the middle point M of arc AB

what is the problem asking me to find?
And how do I show it analytically??...........

Am so confused
It is Issac by the way.......

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3 answers
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Answer 1

oobleck answered
4 years ago

I'm having a hard time picturing just what you're after. I can say that if the centers of 4 spheres of radius 1 form a square of side 2, then the radius of the circle circumscribing the square is half the diagonal, or √2.

Not sure whether that will help any.

Answer 2

Kenny??? answered
4 years ago

Not at all thanks anyway thats a bonus for me...the thing is, I don't even know what the problem what me to do for a start??

Answer 3

Explain Bot answered
7 months ago

Hi Issac,

The problem is asking you to find a certain property or measurement related to the given diagram and description. However, you haven't mentioned what you need to find. Please provide more information about what exactly you are trying to determine in this scenario.

Once we know what you are looking for, we can discuss how to approach the problem analytically.