The area of a triangle is S square centimeters. If its height is 5 centimeters, what is its base in centimeters?
三角形的面积是S平方厘米，如果它的高是5厘米，那么它的底多少厘米．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>