The perimeter of an isosceles triangle is 24 cm, and the ratio of the waist to the base is 2:3. What is the length of the base?
一个等腰三角形的周长是24CM，腰和底边的比是2：3．底边长是多少？
<gadget id="calculator">2 + 2 + 3</gadget>
<output>7</output>

<gadget id="calculator">24 / 7</gadget>
<output>24/7 = around 3.428571</output>

<gadget id="calculator">(24/7) * 3</gadget>
<output>72/7 = around 10.285714</output>

<result>72/7 = around 10.285714</result>