Answer:
HI = 26
Step-by-step explanation:
To
calculate this, we use the principle of similar triangles
Mathematically, when two triangles are similar, the ratio of their corresponding sides are equal
Thus, we have it that;
Let HI = x
x/x + 39 = 12/30
30(x) = 12(x + 39)
30x = 12x + 468
30x - 12x = 468
18x = 468
x = 468/18
x = 26
HI = 26
