计算下面图形的面积。7w*X6i1M1m3T
15厘米7w*X6i1M1m3T
算式：提示;k)j+T1O1O(W9v1]8M)^*|.K4I8U)p3g7w*X6i1M1m3T
答：面积是0R.^9q:g2j平方厘米。7w*X6i1M1m3T