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Visualizing Solid Shapes
What cross-sections do you get when you give a
(i) vertical cut (ii) horizontal cut
to the following solids?
(a) A brick (b) A round apple (c) A die
(d) A circular pipe (e) An ice cream cone
(a) A brick
We can give a vertical cut to a brick in the following way.
We can give a horizontal cut to a brick in the following way.
(b) A round apple
We can give a vertical cut to a round apple in the following way.
We can give a horizontal cut to a round apple in the following way.
(c) A die
We can give a vertical cut to a dice in the following way.
We can give a horizontal cut to a dice in the following way.
(d) A circular pipe
We can give a vertical cut to a circular pipe in the following way.
We can give a horizontal cut to a circular pipe in the following way.
(e) An ice cream cone
We can give a vertical cut to an ice cream cone in the following way.
We can give a horizontal cut to an ice cream cone in the following way.
Sponsor Area
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.
What cross-sections do you get when you give a
(i) vertical cut (ii) horizontal cut
to the following solids?
(a) A brick (b) A round apple (c) A die
(d) A circular pipe (e) An ice cream cone
A bulb is kept burning just right above the following solids. Name the shape of the shadows obtained in each case. Attempt to give a rough sketch of the shadow. (You may try to experiment first and then answer these questions).
Here are the shadows of some 3−D objects, when seen under the lamp of an overhead projector. Identify the solids (s) that match each shadow. (There may be multiple answers for these!)
Examine if the following are true statements:
(i) The cube can cast a shadow in the shape of a rectangle.
(ii) The cube can cast a shadow in the shape of a hexagon.
Sponsor Area
Sponsor Area