Step 1:
\Consider the triangle .
Draw the diagram.
\The sides of a triangle are and
.
The angle of triangle .
Solve the triangle by using the Law of Sines.
\The Law of Sines: .
Consider .
Substitute ,
and
in
.
.
From the result of (3), Angle .
The Law of Sines: .
Substitute ,
and
in
.
\
\
\
\
\
Sum of three angle in a triangle is .
\
\
Consider the triangle .
Draw the diagram.
\\
The sides of a triangle are and
.
The angle of triangle .
Solve the triangle by using the Law of Sines.
\The Law of Sines: .
Consider .
Substitute ,
and
in
.
.
\
\
\
\
\
\
\
\
\
\
\
\
\
\
\
\
\
\
\
\
\
\
.
Step 3:
\The sum of three angles in a triangle is .
Substitute and
.
.
Find the length of the .
Using Law of Sines.
\Consider .
Substitute ,
and
in
.
.
Solution:
\,
and
.