Formation of Solid Solids

Q.

What shape is your instrument box?

Q.

Can a pyramid have rectangles as lateral faces?

Q.

The given figure is rotated by an angle of ${90}^{\circ }$ in the clockwise direction around the centre. The resultant figure will be

1. 

2. 

3. 

4. 

Q.

Which of the following is not a polyhedron?

1. Cube

2. Cone

3. Cylinder

4. Prism

Q.

Describe the intersection of the plane and the solid.

Q. Which of the following is/are true regarding a solid?

1. It has three dimensions
2. It has infinite dimensions
3. It is made up of infinite two dimensional structures
4. A solid has no dimensions

Q. Which of the following can be used to obtain a cylinder?

1. Rotating a rectangle about its side
2. Stacking circles of same radius
3. Rotating a right angled triangle by its hypotenuse
4. Both (a) and (b).

Q.

In the above figure,
(i) represents a/an ___,
(ii) represents a/an ___ and
(iii) represents a/an ___.

Q. If we stack a large number of sheets of paper on top of each other, we get a solid.

1. True
2. False

Q. The shapes formed by rotating a right triangle about its height is:

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

Q. is the shape formed by rotating a right angled triangle about its height.

1. Sphere
2. Cone
3. Cylinder

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

Q. is the shape formed by rotating a right angled triangle about its height.

1. Sphere
2. Cone
3. Cylinder

Q.

We have 4 congruent equilateral triangles. What more do we need to make a pyramid?

1. An equilateral triangle

2. A square with same side length as of the triangles

3. 2 equilateral triangles with side length same as the triangles

4. 2 squares with side length same as triangle

Q. The solid obtained by rotating a right triangle about its height is ____ .

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