A triangular orchard has an area of 0.84 hectares and a known base of 250 meters. How many meters is it high?
一块三角形的果园，面积是0.84公顷，已知底是250米．它的高是多少米？
<gadget id="calculator">0.84 * 10_000</gadget>
<output>8_400</output>

<gadget id="calculator">2 / 250</gadget>
<output>1/125 = around 0.008</output>

<gadget id="calculator">8_400 * (1/125)</gadget>
<output>336/5 = around 67.2</output>

<result>336/5 = around 67.2</result>