Rule: calculate by the article. How many sides there are in a geometric figure, how many bananas there are, and how many hands (hours, minutes and seconds) there are in a clock, so no matter what time, the three hands are the same. So the figure 1 equals15+15+15 = 45; Figure 2 is equal to 4+4+15 = 23; Fig. 3 is equal to 4+3+3= 10, so fig. 4 is equal to 3+3+3* 1 1=39 (note: no matter what time the clock is, the number of the pointer is always constant).