SOLUTION: a circle with a 9cm diameter, has a piece cut out with a degree of 44. how do you work out the lenghtof the piece? and what is the circumference of the whole circle and how do you

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Question 333744: a circle with a 9cm diameter, has a piece cut out with a degree of 44. how do you work out the lenghtof the piece? and what is the circumference of the whole circle and how do you work that out?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
You need the length of the arc of the circle.
angle = 44 deg
arc length = 44*(pi/180) * 4.5
= 3.46 cm
..
circumference = pi*9= 28.27 cm