CBSE Class 7 Mathematics Practice Assignment Set B

VISUALISING SOLID SHAPES

1. Write the no. of edges, faces and vertices for each –

a) cube b) cuboid c) cylinder d) cone

e) triangular prism f) triangular g) square pyramid h) hexagonal pyramid

2. The dimensions of a cuboid are 6cm, 4cm and 2cm respectively. Draw 3 different isometic sketches of the cuboid.

3. Four cubes of 2cm edge are placed side by side to form a cuboid. Sketch an oblique as well as an isometic sketch of the resulting cuboid.

4. Find the number of edges in a polyhedron having 8 faces and 12 vertices.

5. What cross-section is made in the following solids by: i) Vertical cut ii) Horizontal cut

a) a lemon b) a brick c) a tree trunk

d) a die e) an egyption Pyramid

6. Tick the correct option:

I) An isometric sheet is made up of dots forming:

a) Right angled triangles

b) Equilateral triangles

c) Squares

d) Rectangles

II) The number of edges in a polyhedron having 8 faces & 12 vertices is:

a) 14

b) 16

c) 18

d) 20

III) The top view of the solid shown in the figure below is:

a) b) c) d)

IV) A horizontal cross-section of the solid shown in the adjoining fig. is a:

a) Triangle b) Square c) Hexagon d) Octagon

V) The solid having only one vertex is a:

a) Prism b) Pyramid c) Cylinder d) Cone

Q2. True or False.

a) The shadow of a 3-D object is 2-D.

b) The net of a solid is unique.

c) A cylinder has 2 faces.

d) The front, side & top view of a sphere are different.

e) The given net is of a closed cone.

Q3. Fill in the blanks:

a) The base of a pyramid is a _______ & its faces are _______ having a common vertex.

b) The two faces of a solid meet to form an _______.

c) A point where three or more faces meet is called a _______.

d) A solid that has congruent & parallel polygons as top & base joined by rectangular faces is known as________.

e) A pyramid having 4 equilateral triangles as its faces is called a _______. 

Please click the link below to download CBSE Class 7 Mathematics Practice Assignment Set B