Answer:
38π
Step-by-step explanation:
The circumference of a circle is calculated by multiplying the diameter of a circle by π. The radius is half of the diameter. So 19 x 2 = 38. 38π
119.380521 in
C= 2piR
C= 2xpixR
C= 2xpix19
C= 2x3.14x19
C= 6.28x19
C= 119.32
Which is approximately 119.380521
yes it's rotated 180 degree angle
1 student in each group with 126 groups in total
x=-4 and y=0