Can You Solve The Tetrahedron Puzzle?

Excited for the August 21 eclipse? Visit our Eclipse 2017 page to explore the science, history, and myths of the event. The Curiosity team will be viewing the eclipse alongside NASA in Carbondale, Illinois. Follow us on Facebook for live videos, trivia, and interviews on the big day.

Can you solve the tetrahedron math puzzle? You have a tetrahedron and a pyramid with equal side lengths. A tetrahedron is made up of four equilateral triangles (a total of four sides), and a pyramid is made up of four equilateral triangles and a square base (a total of five sides). The two shapes are glued together on a triangular face. How many faces are there on the resulting figure? This was on a 1980 PSAT math exam question... and many people got it wrong.

If you liked this you'll love our podcast! Check it out on iTunes, Stitcher, Google Play Music, SoundCloud, search 'curiosity' on your favorite podcast app or add the RSS Feed URL.