We need more info like a) this b) or this stuff like that
Answer:
i have solved them . if u can't understand. .. ask me XD
Answer: 
Step-by-step explanation:
Given the right triangle in the image, you need to remember the following identity:

Observe the triangle. You can identify that:

Then, knowing these values, you can substitute them into
:

Finally, you have to solve for "x".
Therefore, the value of "x" rounded to the nearest tenth is:
