The shape of an orchard is a parallelogram with a base of 90 meters and a height of 80 meters. If 10 fruit trees are planted per square meter, how many trees can be planted in this orchard?
一个果园的形状是平行四边形，底是90米，高是80米，如果每平方米种10棵果树，这个果园一共可种植多少棵树？
<gadget id="calculator">90 * 80 * 10</gadget>
<output>72_000</output>

<result>72_000</result>