Wang Hua's height is 1.75m, and the length of his shadow is 1.2m. If the shadow of a tree is 4.8m long at the same time and place, how tall is the tree?
王华的身高1.75m，他的影子长是1.2m．如果同一时间，同一地点测得一棵树的影子长4.8m，这棵树有多高？
<gadget id="calculator">1.75 * 4.8</gadget>
<output>8.4</output>

<gadget id="calculator">8.4 / 1.2</gadget>
<output>7</output>

<result>7</result>