Answer:
C.
Step-by-step explanation:
Circumference=PI*diameter
Circumference=3.14*19.5
Circumference=61.23 rounds to 61.2 so the answer is C
Answer:

Step-by-step explanation:

The correct option is B.
Answer:
If two angles are not complementary, then their angles add up to 180 degrees.
Step-by-step explanation:
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