# Pi for a Square! (VIDEO!)

Everyone talks about the value of pi for a circle, but what is the value of pi for a square, or a triangle, or a septagon? Do the formulas for circumference and area, which involve pi, still work? (They do!)

Everyone talks about the value of pi for a circle, but what is the value of pi for a square, or a triangle, or a septagon? Do the formulas for circumference and area, which involve pi, still work? (They do!)