Question

Points A and B lie on a circle with radius 1, and arc

⌢
AB
has a length of
π
3
. What fraction of the circumference of the circle is the length of arc
⌢
AB
?

Answer 1

arc AB=16 circumference

Explanation:

The circumference of a circle with radius

r=1

has a length

C1=2rπ=2π

An arc length of π 3 represents π

32π = 132 + 16 of this circumference