The area of a right triangle is 45 square centimeters, one of its right angled sides is 5 centimeters long, and how many centimeters is the other right angled side?
一个直角三角形的面积是45平方厘米，它的一条直角边长5厘米，另一条直角边长多少厘米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">45 * (2/5)</gadget>
<output>18</output>

<result>18</result>