Answer: d,f

=> all the values are d and f
Step-by-step explanation:
You can do it in multiple ways but mine is.... 140+120-160=180
X= 2.5 that is the correct answer
Answer:
∠ PQR = 70°
Step-by-step explanation:
The tangent- tangent angle PQR is half the difference of the intercepted arcs.
minor arc PR = 360° - 250° = 110°
Then
∠ PQR =
(250 - 110)° =
× 140° = 70°