Questions: Solve the following oblique triangle for all of its missing sides angles. Round all answers to the nearest whole number.
Angle A=
Angle B=
side c=
Transcript text: Solve the following oblique triangle for all of its missing sides & angles. Round all answers to the nearest whole number.
Angle $\mathrm{A}=$
Angle $B=$
side $\mathrm{c}=$ $\square$
Solution
Solution Steps
Step 1: Identify Given Information
Angle \( C = 22^\circ \)
Side \( b = 122 \)
Side \( a = 192 \)
Step 2: Use the Law of Sines to Find Angle \( A \)
The Law of Sines states:
\[
\frac{a}{\sin A} = \frac{b}{\sin B} = \frac{c}{\sin C}
\]
Using the given values:
\[
\frac{192}{\sin A} = \frac{122}{\sin 22^\circ}
\]
Solving for \( \sin A \):
\[
\sin A = \frac{192 \cdot \sin 22^\circ}{122}
\]
\[
\sin A \approx \frac{192 \cdot 0.3746}{122} \approx 0.589
\]
\[
A \approx \sin^{-1}(0.589) \approx 36^\circ
\]
Step 3: Find Angle \( B \)
Since the sum of angles in a triangle is \( 180^\circ \):
\[
B = 180^\circ - A - C
\]
\[
B = 180^\circ - 36^\circ - 22^\circ = 122^\circ
\]
Step 4: Use the Law of Sines to Find Side \( c \)
Using the Law of Sines again:
\[
\frac{c}{\sin C} = \frac{a}{\sin A}
\]
\[
c = \frac{a \cdot \sin C}{\sin A}
\]
\[
c = \frac{192 \cdot \sin 22^\circ}{\sin 36^\circ}
\]
\[
c \approx \frac{192 \cdot 0.3746}{0.588} \approx 122
\]