Asked by frog

What is the length, in radians between 0 and 2π, of the arc on a unit circle that subtends an angle measure of 445°?

Enter your answer as a fraction in the boxes in terms of π, please.
I REALLY need help....
Answered by oobleck
length is not measured in radians
445° = 360+85°
so you cannot subtend an angle of 445°
However, radians = degrees * π/180
so figure out what you really want, and convert to radians if needed.
for arc length, s = rθ
Answered by frog
is 85 degrees 17pi/36, and the radius 1 or 0.5?
Answered by oobleck
yes, 85 degrees 17pi/36
it's the <u>unit circle</u>, so the radius is 1.
Answered by frog
THANK YOU!
Answered by frog
aced my final cause of u!
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