Answer:
Hyp = 9.42
R = 71º
S = 19º
Step-by-step explanation:
Use the Pythagorean Theorem
a² + b² = c²
c² = 8.9² + 3.1²
c² = 79.21 + 9.61
c² = 88.82
Take the square root of both sides
c = 9.4244363227
Rounded
Hyp = 9.42
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sin = opp/hyp
sinR = 8.9 / 9.42
R = arcsin(8.9/9.42)
R = 70.873645608345649
Rounded
R = 71º
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S = Unnamed angle
S = 180 - 90 - 71
S = 19º
