Viewing Sections of a Solids by Using Shadow

Q. Identify the shape of the shadow of the given object.

1. Triangle
2. Circle
3. Square
4. Rectangle

Q.

When the shadow of the Rubik's cube was projected, the shape of the polygon formed on the wall is __.

Q.

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).

Q. (a) Draw the front, top and side view of a cone.

(b) 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).

Q.

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!)

Q. Which of the following will cast the shadow of a triangle?

1. Football
2. Birthday cap
3. Notebook
4. Disc

Q. Which of the following will cast the shadow of a square?

1. Dice
2. Cubical magic box
3. Plate
4. Football

Q. A dice is such that the sum of numbers on the opposite faces is 7. Find the sum of numbers on the faces opposite to faces having 2 and 6.

1. 6
2. 4
3. 2
4. 8

Q.

Using Euler's formula, find the value of
(F + V - E ) for the given figure.

1. 2

Q. Identify the shape of the shadow of the given object.

1. Square
2. Triangle
3. Circle
4. Rectangle

Q. (a) Draw the front, top and side view of a cone.

(b) 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).

Q. Which of the following will cast the shadow of a square?

1. Dice
2. Cubical magic box
3. Plate
4. Football

Q.

If a right angled triangle is rotated about one of its perpendicular sides, then the shape obtained will be a _______.

1. cone
2. cylinder
3. cube
4. cuboid

Q. (a) Draw the front, top and side view of a cone.

(b) 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).

Q. 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).

Q. A prism with a pentagonal base has ___ edges.

1. 16
2. 18
3. 15
4. 10

Q. Which of the following will cast a shadow in the shape of a rectangle?

1. Ball
2. Book
3. Circular plate
4. Ring