The ratio of the lengths of the three sides of a right triangle is 1:2:3, its perimeter is 24cm, what is the area of this triangle in cm**2.
一个直角三角形的三条边的长度之比是1：2：3，它的周长是24cm，这个三角形的面积是多少cm**2．
<gadget id="calculator">1 + 2 + 3</gadget>
<output>6</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">24 * (1/6)</gadget>
<output>4</output>

<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">24 * (1/3)</gadget>
<output>8</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">4 * 8 * (1/2)</gadget>
<output>16</output>

<result>16</result>