The perimeter of a right triangle is 24 cm, and the ratio of the lengths of the three sides is 5:4:3. What is the area of this right triangle in square centimeters?
一个直角三角形周长24厘米，三条边长度的比是5：4：3，这个直角三角形的面积是多少平方厘米．
<gadget id="calculator">5 + 4 + 3</gadget>
<output>12</output>

<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">4 / 12</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

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

<result>24</result>