
Volume 
Surface Area 
Graphing in 3 Dimensions 
The volume of a pyramid is one third the product of the height
and the area of the base (V = 1/3 Bh). 
The surface area of the regular pyramid is the sum of the lateral
area and the area of the base (S.A. = 1/2ps + B) 
The midpoint of the segment that joins any two points A(x1,y1,z1)
and B(x2,y2,z2)
has the coordinates[(x1 + x2)/2,
[(y1 + y2)/2,[(z1 +
z2)/2]. 
The volume of a cone is one third the product of the height and
the area of the base (V = 1/3 (pi)r2h) 
The surface area of a cone is the sum of the lateral area and
the area of the base (S.A. = (pi)rs + (pi)r2). 
The distance AB between two points in space A(x1,y1,z1)
and B(x2,y2,z2)
is square root of (x2  x1)2 +
(y2y1)2 +
(z2 + z1)2. 
The volume of a sphere with radius r is 4/3(pi)r3(V
= 4/3 (pi)r3. 
The surface areaa of a sphere with radius r is 4(pi)r2.
(S.A. = 4(pi)r^2. 
