I am building a triangle, right. The first two sides are done, but the longest side is hard. Why does it have so many vowels?

I'm thinking of another number, this time between three and four, Not an integer then, after the decimal, this number actually goes on forever, But that doesn't help there's an infinite number of those too! Well this number is the ratio of a circumference and a diameter

Cogito, ergo... If this is true, Then all you can know, Is that there is you...

I sit in silence, yet cannot stay, Each move I make leads me astray. Though stillness seems the safest way, The board demands I play my sway. No choice is safe, no step is free, Forced to act, defeat waits for me yet im on board with other piceses

You’re in a house, all four walls face south. What color is the bear?