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Unformatted text preview: B = 90 o  A = 75 o . a = b tan( A ) .8 . c = 3.1 . Problem : Solve the following right triangle. A = 90 o  B = 52 o . b = c cos( A ) 4.8 . a = 6.1 . Problem : A 14 foot ladder is used to scale a 13 foot wall. At what angle of elevation must the ladder be situated in order to reach the top of the wall? x = arcsin( ) 68.3 o . The ladder must be situated with about a 68.2 o angle of elevation in order to reach the top of the wall. Problem : A ramp is needed to allow vehicles to climb a 2 foot wall. The angle of elevation in order for the vehicles to safely go up must be 30 o or less, and the longest ramp available is 5 feet long. Can this ramp be used safely? Yes. With the 5 foot ramp in place, the angle of elevation is arcsin( ) 23.6 o , which is within the allowable measure....
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 Fall '14
 Kelley
 Trigonometry, Angles, Right triangle, triangle, following right triangle

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