What is the area of a triangle with a height of 4 cm and a base of 3 cm?
一个高是4cm，底3cm的三角形面积是多少．
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">4 * (3/2)</gadget>
<output>6</output>

<result>6</result>