After the side length of a square is shortened (1/4), the perimeter of the new square obtained is 72 cm. What is the side length of the original square in cm?
一个正方形的边长缩短(1/4)后，得到的新正方形的周长是72厘米，原正方形的边长是多少厘米．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) * 4</gadget>
<output>1</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">72 / 3</gadget>
<output>24</output>

<result>24</result>