Question

CAN SOMEONE PLEASE HELP ME ASAP PLEASEEEE!!!​

Answer 1

11.4

Explanation:

So we know that Triangle ACB is similar to Triangle EFD.

This means that their sides are proportional to each other.

We want to find x or side AB. To do so, we can set up a proportion.

The proportional side to AB is ED. Let's also use BC since we know its value. The proportional side to BC is DF. Thus:

`(AB)/(ED)=(BC)/(DF)`

Substitute x for AB, 3.8 for Ed, 15 for BC, and 5 for DF. Thus:

`(x)/(3.8)=(15)/(5)`

Reduce the right:

`(x)/(3.8)=(3)/(1)`

Cross multiply:

`x=11.4`

So, the value of x is 11.4

And we're done!