A piece of parallelogram land has a base length of 280m and a height of 260m. How many hectares does this land have?
一块平行四边形土地，底边长280m，高是260m，这块地有多少公顷．
<gadget id="calculator">280 * 260</gadget>
<output>72_800</output>

<gadget id="calculator">72_800 / 10_000</gadget>
<output>182/25 = around 7.28</output>

<result>182/25 = around 7.28</result>