Arc Length

ARC LENGTH

• ARC LENGTH = A = A OVER 360 X PIE-D

ARC LENGTH

• A CIRCLE HAS A SECTOR CALLED 'E' THE SECTOR ANGLE = 38 DEGREES. WORK OUT THE ARC LENGTH - 'E'.
• ARC LENGTH = E = 38 OVER 360 X PIE X 22
• = 7.3CM

ARC LENGTH

• THE LINE THAT IS PART OF THE SECTOR THAT HAS A LENGTH ON IT, IS ALSO THE RADUIS.
• SO WHEN YOU TIME IS BY PIE-D YOU TIMES THE 11CM (THE RADIUS) BY 2 TO GET THE 'D' PART OF THE PIE-D.

ARC LENGTH

• WORKING BACKWARDS
• THE SECTOR HAS AN ANGLE OF 35 DEGREES
• THE ARC LENGTH IS 20CM
• FIND THE RADIUS

ARC LENGTH

• THE SECTOR HAS AN ANGLE OF 35 DEGREES
• THE ARC LENGTH IS 20CM
• FIND THE RADIUS

ARC LENGTH

• ARC LENGTH = 35 OVER 360 X PIE-
• 20 = 35 OVER 360 X PIE-D
• 20 = 0.0972 X PIE-D
• 20 = 0.3054 X D
• DIAMETER = 20 OVER 0.3054 = 65.49
• RADIUS = 65.49 --2
• RADIUS = 32.7C