The measurement team of Yucai Primary School wanted to measure the height of a tree, and the shadow length of the tree was 8.4 meters. There was a 2-meter pole nearby, and its shadow length was 1.2 meters. How tall is this tree?
育才小学测量小组要测量一棵树的高度，量得树的影长是8.4米，附近有一根2米的标杆，它的影长是1.2米．这棵树高多少米？
<gadget id="calculator">2 / 1.2</gadget>
<output>1.666667</output>

<gadget id="calculator">1.666667 * 8.4</gadget>
<output>14.000003</output>

<result>14.000003</result>