Triangle ABC is similiar to triangle DEF. what is the value of x?

24=x

Step-by-step explanation:

5*?=10

   2 (you should know 5*2=10)

12*2=?

        24 (again you know what 12*2 is)

hope this helped :)

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step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.