text: 1 August, 06:21
  
  # If a road has a grade of 30°, this means that it's angle of elevation is 30°. If you travel 1.5 miles on this road, how much elevation have you gained in feet (5280 ft = 1 mile) ?
  
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  1. 1 August, 07:25
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  The elevation gained after travelling 1.5 miles = 3960 ft.
  
  Step-by-step explanation:
  
  Given data,
  
  Angle of elevation = 30°
  
  Distance traveled = 1.5 miles
  
  1 mile = 5280 ft.
  
  Therefore 1.5 miles = 5280 x 1.5
  
  = 7920 ft.
  
  The height can be calculated by,
  
  sin 30° = height / 7920
  
  1/2 = height / 7920
  
  Height = 7920/2
  
  = 3960 ft.
  
  The elevation gained after travelling 1.5 miles will be 3960 ft.