A square pool without a cover has a side length of 5 meters measured from the inside. If the inside of the pool is covered with waterproof paint, how many square meters is the painted area?
一个无盖的正方体的水池，从里面量得棱长是5米，给这个水池里面全部刷上防水涂料，刷涂料的面积是多少平方米？
<gadget id="calculator">5 * 5 * 5</gadget>
<output>125</output>

<result>125</result>