The area of a triangle is 24dm**2 less than that of a parallelogram with the same base and height. It is known that the base of the triangle is 12dm, and the height is dm.
一个三角形比一个与它等底等高的平行四边形的面积少24dm**2，已知三角形的底是12dm，高是多少dm．
<gadget id="calculator">2 / 12</gadget>
<output>1/6 = around 0.166667</output>

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

<result>4</result>