While his peers explored the principles of rectangles, Pythagoras obsessed over the mathematics of the triangle mostly to justify his unchanging diet of pizza slices. Bite into a cheesy angle with today’s Groupon: for $8, you get $16 worth of casual Italian fare at Gumby’s Pizza, valid at the locations in East Lansing and Kalamazoo.

At Gumby’s Pizza, dough-slingers populate a menu with cheesy pies, specialty garlic breadsticks, and veggie- or meat-laden pastas. Cravings meet their match with basic cheese pizzas ($8.99+) or specialty pies ($13.99+) such as the Maui Wowi, a hangout for pineapple, Sweet Baby Ray's barbecue sauce, and surfer jargon, or the Stoner Pie, home to mozzarella sticks, pepperoni, bacon, and french fries. Meanwhile, Gumby’s breadstick bakers top hand-tossed dough with garlic butter, italian spices, mozzarella, and parmesan for their signature Pokey Stix ($8.99 for 10"). Munchers can carry out their boneless or buffalo wings ($4.50 for 5) and pasta bowls ($6.99) filled with mushrooms, chicken, or bacon to eat around the kitchen table or inside a vacationing neighbor's hot tub.

Gumby's Pizza has changed their name to Goombas Pizza. Their menus can be found here for the Lansing location or the Kalamazoo location.