Verified Answer :

HomertheGenius
  1. m = rise/run
    m = 10/100 = 0.1
    tan α = 0.1
    α = tan^(-1) 0.1 
    α = 5.71 °
    2. 2 km = 2,000 m
     x² + ( 0.1 x )² = 2,000²
     x² + 0.01 x² = 4,000,000
     1.01 x² = 4,000,000
     x = 1,990 m
     h = 1,990 m * 0.1
     h = 199 m
         The road rises 199 m.

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