alemorachis49
03.03.2021 •
Mathematics
The pentagon in washington D.C is shaped like a pentagonal prism. Use the figure below to identify its bases and faces
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Ответ:
BC = 17
ft
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin45° =
, then
sin45° =
= 
= 
= 
( cross- multiply )
BC = 17
ft