Solution:-
The given net can be folded as cube.
Because, it can be folded as below,
Solution:-
The given net cannot be folded as cube.
Because, it can be folded as below,
2. Dice are cubes with dots on each face. Opposite faces of a die always have a total of seven dots on them.
By observing the above figure the sum of the opposite faces is equal to 7.
So, the given net can be folded into a net of dice.
(ii)
No, this cannot be a net for a die.
By observing the figure we can say that, one pair of opposite face will have 1 and 4, another pair of opposite face will have 3 and 6 the sum of these two opposite faces are not equal to 7.
4. Here is an incomplete net for making a cube. Complete it in at least two different ways. Remember that a cube has six faces. How many are there in the net here?
(Give two separate diagrams. If you like, you may use a squared sheet for easy manipulation.)
Because, the net (iii) can be folded as cylinder.
(c) (iv)
Solution:-
Solution:-
2. The dimensions of a cuboid are 5 cm, 3 cm and 2 cm. Draw three different isometric sketches of this cuboid.
Solution:-
From the question it is given that dimension of a cuboid are 5 cm, 3 cm, and 2 cm.
The three different isometric sketches of this cuboid is shown below,
1
2
3. Three cubes each with 2 cm edge are placed side by side to form a cuboid. Sketch an oblique or isometric sketch of this cuboid.
Solution:-
Oblique sketch
Isometric sketch
5. Give (i) an oblique sketch and (ii) an isometric sketch for each of the following:
(a) A cuboid of dimensions 5 cm, 3 cm and 2 cm. (Is your sketch unique?)
(b) A cube with an edge 4 cm long.
Solution:-
(a)
(i) Oblique sketch
(ii) Isometric sketch
(ii) Isometric sketch
