Apps. and Interpretation for IBDP Maths Ebook 1 | Page 181

SUMMARY POINTs
� For a pyramid of height h and base area A :
1. Volume � 1 3 Ah
� For a circular cone of height h and radius r :
1. Slant height
2 2
l � r � h
2
2. Total surface area ��r
� �rl
3. Curved surface area � �rl
1 2
4. Volume � 3 � rh
14
� For a sphere of radius r :
2
1. Total surface area � 4�
r
4 3
2. Volume � 3 � r
� For a hemisphere of radius r :
1. Total surface area � 3�
r
2
2. Curved surface area � 2�
r
2
3. Volume � 3 � r
3
2
Solutions of Chapter 14
www.seprodstore.com
171