The answer is that they are similar triangles
Answer:
<h2>h = 18 cm</h2>
Step-by-step explanation:

Substitute:
<em>multiply both sides by 2</em>
<em>divide both sides by 13</em>

“YA” is included in the problem?
How to divide 5x by 10
Let's write this out as a fraction with 5x as the numerator and 10 as the denominator

10 is the same as 5*2

Both the numerator have a multiply of 5, you can remove the 5 from the fraction

Let me know if you need any clarifications or if this wasn't what you needed, thanks!