Analysis and Approaches for IBDP Maths Ebook 1 | Seite 136

Your Practice Set – Analysis and Approaches for IBDP Mathematics
4. The following diagram shows a circle with centre O and radius 28 cm.
The points A , B and D lie on the circle. The point C is outside the circle, on OC .
AC � 47 cm and angle AOB � 1.1 radians.
(a) Find ˆ ACB.
(b) Find OC .
(c) Find the perimeter of region ADBC .
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