## anonymous one year ago If K//l find the value of a and the value of b.

• This Question is Open
1. anonymous

2. anonymous

The triangles are similar, so corresponding sides are proportional. $\frac{ a }{ a+15 }=\frac{ b }{ b+20 }=\frac{ 40 }{ 60 }$ 40/60 reduces to 2/3 and it may be simpler to break this into 2 equations $\frac{ a }{ a+15 }=\frac{ 2 }{ 3}$ $\frac{ b }{ b+20 }=\frac{ 2 }{ 3}$ Cross multiply to solve