Question

given that ABC ~ DEC, find the value of x. If necessary, round to two decimal places.

Answer 1

I think the key here is to recognize that these are similar triangles, which means the sides are proportional.

Answer 2

which means?

Answer 3

If the sides are proportional you can set up a proportion
So, in this case:
6/36=x+3/63+x

Answer 4

After you have this, you cross multiply, simplify, combine like terms, and isolate the variable.

Answer 5

Do you understand what I'm saying?

Answer 6

not really

Answer 7

Do you understand up to setting up the proportion?

Answer 8

yes