Use two identical triangles to form a parallelogram. Given that the area of the parallelogram is 15 square meters, what is the area of each triangle in square meters?
用两个完全一样的三角形拼成一个平行四边．已知平行四边形的面积是15平方米，每个三角形的面积是多少平方米．
<gadget id="calculator">15 / 2</gadget>
<output>15/2 = around 7.5</output>

<result>15/2 = around 7.5</result>