Hi There!
Answer:
C. 88 degrees
Explanation:
If you look at the picture angle RST looks like a 90 degree angle but if you look even closer its not but really close, and the closest answer is 88.
Hope This Helps :)
C 88
<RST = 1/2 (rt + rq)
< RST = 1/2 (33+ 143)
< RST = 1/2(176)
<RST = 88
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