A parallelogram and a triangle have the same base and height, and the sum of their areas is 36cm**2, so what is the area of the triangle in cm**2?
一个平行四边形和一个三角形的底相等，高也相等，它们的面积之和是36cm**2，那么三角形的面积是多少cm**2．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">36 * (1/3)</gadget>
<output>12</output>

<result>12</result>