Answer:
x = 85/3
Explanation:
Here, we want to find the value of x
As we can see , we have two similar triangles here
The small one at the top and the bigger one that encompasses the whole shape
When two triangles are similar, the ratio of their corresponding sides are equal
Thus, we have it that;
12/20 = 17/x = 15/25
12/20 = 17/x
12 * x = 17 * 20
12x = 340
x = 340/12
x = 170/6 = 85/3