12) The figure below shows part of a circle centre O of radius 6cm a 6...
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12) The figure below shows part of a circle centre O of radius 6cm a 6 cm A 0 B a) If a=0.8 radians, find the length of the arc BC and the area of the sector BOC b) Find the value of the angle a (in radians) for which the arc length BC is equal to the sum of the arc length CA and the diameter. 12) The figure below shows part of a circle centre O of radius 6cm a 6 cm A 0 B a) If a=0.8 radians, find the length of the arc BC and the area of the sector BOC b) Find the value of the angle a (in radians) for which the arc length BC is equal to the sum of the arc length CA and the diameter.
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