Hi,  



a. a=117 ft, b=16.35 ft  Applying the Pythagorean Theorem  a^2 + b^2 = c^2

  117^2 + 16.35^2 = c^2

 c = 

b. ∠B = 8° 29' OR (57°24' = (8° + 29/60)° = 8.4833° and a =  32.8 ft 

  cos(8.4833°) = adj/hyp = 32.8 /c

    c = 32.8/cos(8.4833°) = 33.16

May find a if You wish by Applying the Pythagorean Theorem

 

Calculator makes short work of finding a 

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