3 d shapes
TRANSCRIPT
A SOLID (3-DIMENSIONAL) OBJECT WHICH HAS SIX FACES THAT ARE RECTANGLES.
12cm4 cm
VolumeVolume is the amount of 3-dimensional space an object occupies. The Capacity.
Volume is found using the formula:
Volume = Height × Width × Length
12
cm
12
cm
Surface AreaThe total area of the surface of a three-dimensional object
The surface area is the sum of all the areas of all the shapes that cover the surface of the object.
3cm
4cm
12 cm
A face is the flat surface of a three dimensional shape.
To find out how many faces a prism has you can unfold it…
Face
6
1
52
4
3
6 Faces
How many edges does this rectangular prism have?
3
1
4
5
2 6
9
7
8
1011
12
An edge is the line formed by intersecting faces.
12 Edges
Edge
A vertex is the corner on any 3-d shape.
Did You Know?Vertices is plural for vertex. So a shape with only one corner would have one vertex. A shape that has multiple corners, has multiple vertices.
Hint: Count the vertices by circling all of them.
The distance around a two-dimensional shape.
Perimeter
3 cm
The perimeter of a shape is the length of all its sides added together
When discussing a 3-d object the perimeter is the length around the shape’s base
Where is the Base?
3 cm
What is the Perimeter?
12 cm
4 cm
Perimeter ctd.Since the perimeter of a 3-d shape is directly related to the shape’s base, let’s look at the same shape, but situated with a different base.
Where is the Base Now?What is the Perimeter Now?
3 cm
