A, C and D because the angles are named in order. Q=T R=U and so on
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4 and 15. You can guess and check or use algebra.
Hey there!
Assuming you meant

If so, follow these steps so it can be a little bit easier to solve
Firstly, we have to
by
on each of your sides


We get: 
Now, we have
by
on each of your sides


We get: 
± 
Therefore , your answer is:
±
Good luck on your assignment and enjoy your day!
~
Answer:
y=x+5
Step-by-step explanation: