Representing 3D in 2D
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Q1
The faces of solids meet at
Marks:1Answer:
edges.
Explanation:
The faces of solids meet at edges, which are line segments. 
Q2
Symbols are used to depict the different
Marks:1Answer:
objects/places.
Explanation:
Use of certain symbols help us to read the map easily. 
Q3
If we add the dimension ‘height’ to a square (equal to the side of square) we obtain a
Marks:1Answer:
cube.
Explanation:
Square is an example of 2D shapes (All sides are equal).
If we add ‘height’ to a square (equal to the side of square) then
we obtain cube (3D shapes having three dimensions).

Q4
Example of a 3D shape is
Marks:1Answer:
cuboid.
Explanation:
A solid object has three measurements like length, breadth and height or depth. Hence, they are called threedimensional shapes. 
Q5
The 2D shapes have only
Marks:1Answer:
length & breadth.
Explanation:
Plane shapes have two measurements like length and breadth and therefore they are called twodimensional shapes.