The base of a triangle is equal to the length of the rectangle, and the height is equal to the width of the rectangle. If the area of the rectangle is 10 square meters, what is the area of the triangle in square meters?
一个三角形的底与长方形的长相等，高与长方形的宽相等，若长方形的面积是10平方米，则三角形的面积是多少平方米
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<result>5</result>