A circle is divided into twelve sectors. The sizes of the largest sector is 6.5 times the angle of the smallest sector. Find the angle of the smallest sector.​

Me answer number 3plz explain how you do it

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Find the area of the regular hexagon if a side is 20 cm.