69 degrees because the triangles are the same
Answer
The answer and procedures of the exercise are attached in the following archives.
Step-by-step explanation:
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.
(x,y)-->(y,-x) should be the answer
Whole circle is 360°
70° * 2 = 140°
360° - 140° = 220°
The measure of arc PQR is 220°
