Posted by YUSUF ALU on Wednesday, August 24, 2011 at 9:00am.
FIND THE LENGTH OF THE RADIUS OF THE CIRCLE IS 9cm. THE ARC OF THE SECTOR MEASURES 60 DEGREES. FIND THE AREA OF THE SECTOR.

geometry  bobpursley, Wednesday, August 24, 2011 at 9:11am
Area of the sector=PI*radius^2*angle/360

geometry  Anonymous, Monday, October 31, 2011 at 12:51am
the angle which is two times its complement