1) (8*9,6)/2 = 38,4
2) (12,8*16,5)/2 = 105,6
3) (12*6,5)/2 = 39
4) (24*16)/2 = 192
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Answers & Comments
1) (8*9,6)/2 = 38,4
2) (12,8*16,5)/2 = 105,6
3) (12*6,5)/2 = 39
4) (24*16)/2 = 192