# Can you solve the unstoppable blob riddle? - Dan Finkel

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TEDEd Animation

## Let’s Begin…

A shooting star crashes onto Earth and a hideous blob emerges. It creeps and leaps, it glides and slides. It’s also unstoppable: no matter what you throw at it, it just re-grows and continues its rampage. The only way to save the planet is to cut the entire blob into precise acute triangles while it sleeps, rendering it inert. Can you stop the blob from destroying the planet? Dan Finkel shows how.

## Additional Resources for you to Explore

Imagine starting with a parallelogram instead of an obtuse triangle. What’s the minimum number of cuts to dissect this into acute triangles? In general, given any strangely drawn n-sided polygon, what’s the most number of cuts that would be required to dissect it into acute triangles?

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## Meet The Creators

• Educator Daniel Finkel
• Director Igor Coric
• Animator Nemanja Petrovic
• Producer Milica Lapcevic
• Director of Production Gerta Xhelo
• Editorial Producer Alex Rosenthal
• Associate Producer Bethany Cutmore-Scott
• Fact-Checker Brian Gutierrez

Mathematics

## The paradox at the heart of mathematics: Gödel's Incompleteness Theorem

Lesson duration 05:20

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