Among all students, sports is, by far, the most popular activity and watching TV is the least popular.
Remember
(a/b)/(c/d)=(a/b)(d/c)=(ad)/(bc)
convert to improper fractions
8 and 1/2=8+1/2=16/2+1/2=17/2
2 and 1/4=2+1/4=8/4+1/4=9/4
8 and 1/2 divided by 2 and 1/4=
(17/2)/(9/4)=
(17/2)(4/9)=
(17*4)/(2*9)=
68/18=
34/9=
27/9+7/9=
3+7/9=
3 and 7/9
Sum of all exterior angles = 360°
Size of one exterior angle = 40°
Number of sides = 360 ÷ 40 = 9
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Answer: There are 9 sides to this polygon.
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