A 36 cm long cylinder is cut into two long and short cylinders according to the ratio of 5:4. The surface area is increased by 90 square centimeters. What is the volume of the longer cut cylinder in cubic centimeters?
36厘米长的圆柱按5：4截成两个一长一短的圆柱，表面积增加了90平方厘米，截成的较长的圆柱的体积是多少立方厘米．
<gadget id="calculator">90 / 2</gadget>
<output>45</output>

<gadget id="calculator">5 + 4</gadget>
<output>9</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">36 * (5/9)</gadget>
<output>20</output>

<gadget id="calculator">45 * 20</gadget>
<output>900</output>

<result>900</result>