Answer: B. 34°
<u>Step-by-step explanation:</u>
∠RQS + ∠SQT = ∠RQT
Since you are solving for diameter, and the equation is given to you, just isolate the variable for diameter (d).
(C)/π = (πd)/π
d = C/π is your formula you will use.
Plug in 56 for C
d = 56/π
d = ~17.825
~
1837440 inches are in 29 miles