Answer:
14.4
Explanation:
Because the figures are similar, they are basically the same figure. One is just dilated by a certain amount. To figure out the missing x, we need to find out exactly how much the small one is dilated from the bigger one.
Here's how we do that:
We know 9 and 5 are correlating sides because of where they are in relation to the right angle. We can find out how much smaller 5 is than 9 by dividing 9 by 5.
9 ÷ 5 = 1.8
This means that x is going to be bigger than 8 by a multiple of 1.8.
8 × 1.8 = x
14.4 = x
I hope this helped :)