Answer:



Step-by-step explanation:
-
Arc Length = radius * Angle in radians
Arc Length = 27.4 *
<span>
<span>
<span>
5.4977871438
</span>
</span>
</span>
Arc Length =
<span>
<span>
<span>
150.6393677396
</span>
</span>
</span>
inches
Source:
http://www.1728.org/radians.htm
Okay, so whatever the answer is to angle A its the same answer to angle C and angle B and D. the angle looks like a obtuse which means it has to be bigger than 90 degrees. use your protractor to measure it.
The angle of STV would be 140 degrees.