The three sides of a right triangle are 5 meters, 4 meters and 3 meters, what is the area in square meters?
直角三角形的三条边是5米、4米和3米，面积是多少平方米．
<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>