9709 P1 - Jun 2005 - Q8 - 8 marks
285
In the diagram, ABC is a semicircle, centre O and radius 9 cm. The line BD is perpendicular to the diameter AC and angle AOB = 2.4 radians.
- Show that BD = 6.08 cm, correct to 3 significant figures.
- Find the perimeter of the shaded region.
- Find the area of the shaded region.
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