2. 8.SP.1.2
1 answer:
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The Pythagorean theorem can tell you the length of "b".
c² = a² + b²
b² = 19² -3² = 360
b = 6√10 ≈ 18.8
Sin = Opposite/Hypotenuse
sin(A) = a/c = 3/19
A = arcsin(3/19) ≈ 9.1°
B = 90° - A = 80.9°
The remaining sides and angles are ...
b = 18.8
A = 9.1°
B = 80.9°
c² = a² + b²
b² = 19² -3² = 360
b = 6√10 ≈ 18.8
Sin = Opposite/Hypotenuse
sin(A) = a/c = 3/19
A = arcsin(3/19) ≈ 9.1°
B = 90° - A = 80.9°
The remaining sides and angles are ...
b = 18.8
A = 9.1°
B = 80.9°