HELP RATIO OF TWO BALLS

[Ana.stasia]

Basically I have a three sided prism, one ball inside it and one ball outside it.
I need to calculate the ratio of the surface of these two balls.
I did and I got 1:5, while the book says the answe is 4:1.
Where did I go wrong?

 

[firemath]

Can you type the original problem? That would help immensely.

 

[Ana.stasia]

Can you type the original problem? That would help immensely.

A regular three-sided prism is described around a ball, and a ball is described around it. Determine the ratio of the area of the balls.

 

[Steven G]

It is inscribed, not described.

 

[Steven G]

Can you type the original problem? That would help immensely.

The problem is actually clearly stated. Please read it again.

 

[Ana.stasia]

It is inscribed, not described.

I am trying to translate it into English as best as I can.

 

[Steven G]

I am trying to translate it into English as best as I can.

I understand. Just trying to be helpful.

 

[Ana.stasia]

R

I understand. Just trying to be helpful.

Thank you. What about the problem though?

 

[HallsofIvy]

It is inscribed, not described.

circumscribed, not inscribed!

 

[Dr.Peterson]

I answered this question in another thread:

Prism and two balls HELP

A regular three-sided prism is described around a ball, and a ball is inscribed around it. Determine the ratio of the area of the balls. This is my work. Where did I go wrong?

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