A parallelogram and a triangle have the same base and height. The area of the parallelogram is 10 square meters. What is the area of the triangle in square meters?
一个平行四边形和一个三角形等底等高，平行四边形的面积是10平方米，三角形的面积是多少平方米．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<result>5</result>