A pyramid is a polyhedron with a polygon base of any shape, and all other faces are triangles which have common vertex.
 

This is a group of solids in which the volume is equal to one-third of the product of base area and altitude. There are two solids that belong to this group; the pyramid and the cone.
 

A right circular cylinder is a cylinder whose base is a circle and whose elements are perpendicular to its base.
 

Cylinder is a solid bounded by a closed cylindrical surface and two parallel planes.
 

There are two very common prisms; the cube and rectangular parallelepiped. In non-mathematical term, both are called box.
 

Prism is a polyhedron in which two faces are equal polygons in parallel planes, and all other faces are parallelograms. There are two types of prism; oblique prism and right prism. Oblique prism is when the axis is not perpendicular to the base and right prism if the axis is parallel to the base. In right prism, all lateral areas are rectangle.
 

Solids in which V = A_b × h
This is a group of solids in which the volume is equal to the product of the area of the base and the altitude. Two types of solids belong to this group namely, prisms and cylinders.
 

Problem 004
Referring to Fig. 1.4, determine the angle between vector A and the y-axis.
A. 65.7°
B. 73.1°
C. 67.5°
D. 71.3°
 

Problem 003
Which of the following correctly defines the 500 N force that passes from A(4, 0, 3) to B(0, 6, 0)?
A. 256i - 384j + 192k N
B. -256i + 384j - 192k N
C. -384i + 192j - 256k N
D. 384i - 192j + 256k N