Use concepts and theorems about congruence and similarity to solve problems about lines, angles, and triangles

What is the value of $x$ in the figure above?
Section |
No.
Question Number
|
Difficulty |
|---|
Test |
Section |
No.
Question Number
|
Difficulty |
|---|---|---|---|
| 1 | Math - Calc | 3 | Easy |
| 1 | Math - No Calc | 17 | Medium |
| 2 | Math - Calc | 30 | Hard |
| 2 | Math - No Calc | 18 | Medium |
| 3 | Math - No Calc | 11 | Medium |
| 3 | Math - No Calc | 18 | Hard |
| 4 | Math - Calc | 8 | Medium |
| 4 | Math - No Calc | 16 | Medium |
| 5 | Math - No Calc | 20 | Medium |
| 6 | Math - Calc | 16 | Medium |
| 6 | Math - No Calc | 18 | Medium |