Page 231 - Math Smart - 7
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Solids
A solid is a 3D object. The three dimensions are: height, width and depth. Many
objects around us are cuboids, spheres, cylinders, cubes and cones. Here are some
examples.
o
Cylinders
Spheres
Cuboids
A
JL
Cones
Cubes
Cubes and Cuboids
Solid Number of Faces Number of Vertices Number of Edges
Cuboid
12
Cube
12
The face of a solid is any flat surface in the solid.
Left side face Right side face Front face Back face Bottom face Top face
The edge of a solid is The vertex of a solid is the
the line formed where edges point where two or more vertices
edges meet. Vertices is the
two faces meet.
plural of vertex.
