Plato's Cursed Triangle

Some things mystify. Some things leave us stumped. Some things are amazing and then some things are just better left as mysteries. So what's up with this fun, mysterious triangle? Um, it's a mystery. It's perplexing mystery. Can you figure it out? Me neither. Watch v-e-r-y closely and maybe you'll figure it out. Or not. Have a terrific time playing Plato's Cursed Triangle!