Question

Hey guys, I need help with this question. Please show working out, thanks

Answer 1

Answer:

Step-by-step explanation:

In similar triangles corresponding triangles are in same ratio.

$\frac{15}{5}=\frac{12}{y}$

Cross multiply,

15 * y = 12 * 5

     y = $\frac{12*5}{15}$

      y = 4