posted by Olagunju .
Mathematics: A chord of radius 12cm subtends an angle of 150 degree at the centre of the circle. Calculate.
A. Perimeter of the circle (Ps)
B. Area of the circle. (Account)
C. Length of the circle (Lc)
D. Length of the arc (Last)
E. Perimeter of sector (Ps)
F. Area of sector (As)
G. Perimeter of segment (Pseg)
H. Area of segment (Aseg)
surely you can do some of those. Which ones present a problem?
area of sector: 1/2 r^2 θ
arc length: rθ
The perimeter of a sector of a circle is 66 cm and the radius of circle is 12 cm. Find the corresponding length of the arc.