Question

What is the length of AB?

Answer 1

use the law of sines then solve for x
\[\frac{ \sin A }{ a }=\frac{ \sin B }{ b }=\frac{ \sin C }{ c }\]
\[\frac{ \sin 50 }{ 2x+6 }=\frac{ \sin 50 }{ 4x}\]

does that help?

Answer 2

yes thanks

Answer 3

no problem