The ratio of the lengths of the sides of a right triangle is 3:4:5, and the perimeter is 24 cm. What is the area of the parallelogram with the same base and height?
一个直角三角形三边长度之比3：4：5，周长是24厘米，与它等底等高的平行四边形面积是多少．
<gadget id="calculator">3 + 4 + 5</gadget>
<output>12</output>

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

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

<gadget id="calculator">(1/3) / 2</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">24 * (1/4) * 24 * (1/6) * 2</gadget>
<output>48</output>

<result>48</result>