Incorrect. It is mathematically satisfying, but inefficient. The best way to hold a pizza slice is with another one on top, sandwiching the topping, so you get

Incorrect. It is mathematically satisfying, but inefficient. The best way to hold a pizza slice is with another one on top, sandwiching the topping, so you get a double thickness with the base on the outside so you don't get tomato on your hands.