题如果棱台的两底面面积分别是S、S’，中截面的面积是S0，那么（）．此为1998年高考数学试题中的第（9）题．此题可作如下推广：推广1如果棱台的两底面积分别为S1、S2，一平行于底面的截面将棱台的高自上而下分成的高的比为λ，则截面面积满足推广2如果核台的两底面面积分别为 If the area of ​​the two bottom surfaces of the prism table is S, S’, and the area of ​​the middle section is S0, then (). This is the (9)th question in the mathematics test of the college entrance examination in 1998. This topic can be promoted as follows: Promotion 1 If the area of ​​the two bases of the pyramid table is S1 and S2 respectively, a cross section parallel to the base surface will divide the height of the pyramid table from top to bottom into λ, then the cross-sectional area satisfies the generalization 2 If the area of ​​the two bottom surfaces of the nuclear table is