Solve the right triangle given that a=30 degrees, c=90 degrees and a =15

B = 60°; c = 30; b = 25.98

Step-by-step explanation:

1. Calculate ∠B

 ∠A + ∠B + ∠C =180°

30° + ∠B + 90° = 180°

       ∠B + 120° = 180°

                  ∠B = 60°

2. Calculate c

  sinA = a/c

sin30° = 15/c

      ½ = 15/c

       c = 2 × 15 = 30

3 .Calculate b

   sinB = b/c

sin60° = b/30

 √3/2 = b/30

       b = (30√3)/2 = 15√3 = 25.98

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step-by-step explanation:

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