- A70 on the other scale
- B70 on the scale with 0 at QR
- CAny mark near 90
- D110 on the scale with 0 at QR
Step-by-Step Solution
QR is on the right, so use the scale whose 0 is on the right and mark the point at 70 on it. Using the other scale would give 110°.
Answer: B) 70 on the scale with 0 at QR