There is a big tree on the school playground. The students in the mathematics interest group wanted to measure the height of the tree. They thought of a way. At 9 o'clock in the morning, Xiao Wang stood under the sun. It is known that Xiao Wang is 1.40 meters tall, and the shadow length of Xiao Wang and the tree are measured to be 1.12 meters and 8 meters respectively. Do you know how many meters the tree is tall?
学校操场上有棵大树，数学兴趣小组的同学们要测量树的高度，他们想了一个办法，在上午9时，由小王站在太阳下．已知小王身高1.40米，同时测得小王的影长和大树的影长分别是1.12米和8米，你知道树高多少米吗？
<gadget id="calculator">1.4 / 1.12</gadget>
<output>1.25</output>

<gadget id="calculator">1.25 * 8</gadget>
<output>10</output>

<result>10</result>