Monday, August 20, 2012

Connect the pyramids

We have two pyramids, a square-base right pyramid and a triangle-base right pyramid. All the edges of both the pyramids are of equal length. We joined both the pyramids with one of the triangle-faces of one pyramid coinciding with one of the triangle-faces of another. What are the total number of faces of the new solid figure obtained?

Source : Winkler - Mathematical puzzles (Please go through this book. It is really good)


Aayush Singhal said...

7 ??

pathankhan salman said...
This comment has been removed by the author.
pathankhan salman said...

No its not 7. Think again.