Answer:
A- 50.24
D- the ratio of the circumference of a circle to its diameter
Step-by-step explanation:
circumference (c) = 2πr (2 times pi times radius)
they give you the radius which is 8
c= 2πr
c= 2π(8)
c=16π
you can see all the answers they give you are numbers so you can assume they are rounding pi to 3.14
c=16(3.14)
c=50.24
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the ratio of the circumference of a circle to its diameter
you can test this
c:d = π
use example from earlier
50.24: 8(2) = π ? multiply by 2 because radius times 2 is diameter
50.24: 16 = π ?
50.24/ 16 = π ?
3.14 = π
true
