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tan α = 0.4
tang θ = 2/9
h=?
distancia = 300 m
SOLUCIÓN :
tan α = h / x
tang θ = h/( 300 m + x)
se despeja h y se igualan las ecuaciones, obteniéndose el valor de x
y luego se calcula h :
h = x * tang α
h = ( 300 m + x ) * tangθ
x * tang α = ( 300m + x ) * tang θ
x * 0.4 = ( 300 m + x ) * 2/9
3.6x = 600 + 2x
1.6x = 600
x = 600/ 1.6
x = 375 m
h = x * tangα
h = 375 m * 0.4
h = 150 m respuesta c )