Funny Math Birthday T-Shirt - I AM √361

This black t-shirt features a witty mathematical design perfect for birthdays. The text "I AM" is printed above a square root symbol with the number 361 underneath, followed by the words "YEARS OLD". The equation highlights the wearer is turning 19. Made from a comfortable, dark-colored fabric, this shirt is ideal for casual wear and birthday celebrations. It's a fun and unique way to show off your age with a touch of humor, making it a great conversation starter.