The radius of the bottom of a cylindrical cistern is 10 meters, the height of the water inside is 4.5 meters, and the distance from the mouth of the cistern is 50 cm. What is the volume of the cistern in cubic meters? (π takes 3)
一个圆柱形蓄水池的底面半径是10米，内有水的高度是4.5米，距离池口50厘米，这个蓄水池的容积是多少立方米？(π取3)
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">4.5 + (1/2)</gadget>
<output>5</output>

<gadget id="calculator">3 * 100 * 5</gadget>
<output>1_500</output>

<result>1_500</result>