Henry Project

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Storyboard Text

  • Peep wants to build a ramp, and he wants to get some good hang time.He knows that the two legs are 4 feet, he wants to find out what the angle of elevation is.So, he uses tan-1(4/4 and he gets 45° 
  • 
  • 
  • 
  • x
  • 4 ft
  • x=45° 
  • 4 ft
  • This will be too steep...
  • Now Peep builds a less steep ramp, and its measure is 30° and 2ft he wants to know how long his board will go when on the ramp, so he uses cos(30°=2ft/x. He divides 2 by cos(30°, and he gets 2.3 ft.
  • That is too short!
  • 30° 
  • x
  • 2ft
  • Peep has one last chance to see if his ramp will work. He makes the angle of elevation 30°  and he makes the top four feet. He wants to make sure that the bottom of the ramp is at least 2 feet.
  • 30° 
  • 4ft
  • x
  • It works! Peep used sin(30°= x/4ft which he then multiplied sin(30 by 4 and got 2 feet!
  • Yes! Finally!
  • 30° 
  • 4ft
  • x
  • Let's get it!
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