myrkaxsanchezz
22.09.2019 •
Mathematics
Aregular pentagon has an apothem of 3.2 m and an area of 37.2 m². what is the length of one side of the pentagon?
3.96 m
4.65 m
11.875 m
23.75 m
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Ответ:
37.2 m² = 5 l * 3.2 m / 2 / * 2
74.4 = 5 l * 3.2
74.4 = 16 l
l = 74.4 : 16
l = 4.65 m
B ) 4.65 m
Ответ:
-5/16 or -0.3125
Step-by-step explanation: