The area of a triangle is 24 square decimeters, the base and height are enlarged to 3 times of the original, what is the area?
一个三角形的面积是24平方分米，底和高都扩大到原来的3倍，面积是多少．
<gadget id="calculator">24 * 3 * 3</gadget>
<output>216</output>

<result>216</result>