Analysis and Approaches for IBDP Maths Ebook 1 | Page 114

Your Practice Set – Analysis and Approaches for IBDP Mathematics
SUMMARY POINTs
�
Method of conversions between degree and radian:
1. Degree to Radian: x
�
�
180
180
2. Radian to Degree: y rad �
�
� Consider a sector OPQ with centre O , radius r and �POQ � � in radian:
1. Arc length PQ � r�
2. The area of the sector
3. The area of the segment
1
OPQ �
2
2
r �
1
2
2
PRQ � r � � �
( sin )
Solutions of Chapter 11
106
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