(a) Find the length of the arc ABC. The diagram shows a sector of a circle, centre O. The point D lies on OB such that the length of OD is 2 cm. Angle AOB is theta radians. Work out the perimeter of the sector. Give your answer correct to 3 significant figures. Calculate the value of x. Answer 4 cm ABC is a sector of a circle, radius 4 cm and centre C. The length of the arc AB is 8 cm and angle ACB = xo. Not drawn accurately Show that the perimeter of the sector is greater than 52 cm. The diagram shows a sector OAB of a circle, centre O and radius10 cm. Work out the area of the shaded segment. Angle BOD is 90°. (6) i got 221.. but im sure its not right Angle AOB = 0.6 radians. QUESTION 10 The diagram shows a sector of a circle, centre o, radius 10 cm.The arc length of the sector is 15 cm. 15cm 10 cm 10 cm O (b) Show that the length of the chord AB is 5.06 cm, to 3 significant figures. ABC Is An Arc Of The Circle. 9 π 2 (a) Find the value of In the diagram, OAB is a sector of a circle with centre O and radius 8 cm. A circle with centre C and radius xcm lies within the sector and touches P,Q,R |