Qual é o comprimento da escala,em metros
20m = C.cos 30°
C = 20/cos 30°
C = 20/(²v3/2)
C = 20*2/²v3
C = 40/²v3
C = 40.²v3/3
C = 23m
cos(30) = 20/x
â3/2 = 20/x
â3x = 40
x = 40â3/3
pronto
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Verified answer
20m = C.cos 30°
C = 20/cos 30°
C = 20/(²v3/2)
C = 20*2/²v3
C = 40/²v3
C = 40.²v3/3
C = 23m
cos(30) = 20/x
â3/2 = 20/x
â3x = 40
x = 40â3/3
pronto