I claim I have a nice formula for the area, because this is vertical and this is horizontal h so this length here is u3, this length here is h.
我有个很好的公式来做这个问题,因为这个是竖直的,这个是水平的,所以这个长度这里是u3,这个长度这里是。
I claim I have a nice formula for the area, because this is vertical and this is horizontal h so this length here is u3, this length here is h.
我有个很好的公式来做这个问题,因为这个是竖直的,这个是水平的,所以这个长度这里是u3,这个长度这里是。
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