Answer:
the answer is the option A
[tex]\frac{sin23\°}{6.2}=\frac{sin85\°}{b}[/tex]
Step-by-step explanation:
Step 1
Find the measure of angle C
we know that
the sum of the internal angles of the triangle is equal to [tex]180\°[/tex]
so
[tex]C= 180\°-72\°-85\°=23\°[/tex]
Step 2
Applying the law of sines
[tex]\frac{sinC}{c}=\frac{sinB}{b}[/tex]
substitute the values
[tex]\frac{sin23\°}{6.2}=\frac{sin85\°}{b}[/tex]
