There is a rectangular playground with a length of 105 meters and a width of 87 meters on the campus of the experimental primary school. What is the area of the playground in square meters?
实验小学校园里有一个长105米、宽87米的长方形活动场，这个活动场的面积是多少平方米．
<gadget id="calculator">105 * 87</gadget>
<output>9_135</output>

<result>9_135</result>