What is the area of a triangle whose base is 5 cm and height is 3 cm?
一个三角形的底是5厘米，高是3厘米，面积是多少．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">5 * (3/2)</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>