Asked by ted
What is the arc length if the central angle is 225 degrees and the radius of a circle is 3 cm?
pls help. i don"t get it
pls help. i don"t get it
Answers
Answered by
MathMate
Arc length = rθ ...(1)
where r is radius and θ is central angle in radians.
To convert 225° to radians, multiply by (π/180) to get 225π/180=5π/4
Use formula (1) to calculate arc length, which should be in the same units as the radius.
where r is radius and θ is central angle in radians.
To convert 225° to radians, multiply by (π/180) to get 225π/180=5π/4
Use formula (1) to calculate arc length, which should be in the same units as the radius.
Answered by
monday
2*225*pie/360*3
should be the answer;)
should be the answer;)
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