Punjab State Board PSEB 7th Class Maths Book Solutions Chapter 15 Visualising Solid Shapes Ex 15.2 Textbook Exercise Questions and Answers.
PSEB Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes Ex 15.2
1. Use isometric dot paper and make an isometric sketch of the following figures :
Question (i).
Solution:
Question (ii).
Solution:
Question (iii).
Solution:
Question (iv).
Solution:
2. Draw (i) an oblique sketch (ii) Isometric sketch for :
(a) A cube with a edge of 4 cm long
(b) A cuboid of length 6 cm, breadth 4 cm and height 3 cm
Solution:
(a) (i) Oblique sketch of cube with a edge 4 cm long.
(ii) Iso metric sketch for a cube with a edge of 4 cm long.
(b) (i) an oblique sketch for a cuboid of length 6 cm, breadth 4 cm and height 3 cm.
(ii) Isometric sketch for a cuboid of length 6 cm, breadth 4 cm and height 3 cm.
3. Two cubes each with edge 3 cm are placed side by side to form a cuboid, sketch oblique and isometric sketch of this cuboid.
Solution:
4. Draw an Isometric sketch of triangular pyramid with base as equilateral triangle of 6 cm and height 4 cm.
Solution:
5. Draw an Isometric sketch of square pyramid.
Solution:
6. Make an oblique sketch for each of the given Isometric shapes.
Question (i).
Solution:
Question (ii).
Solution:
7. Using an isometric dot paper draw the solid shape formed by the given net.
Solution:
8. Multiple choice questions:
Question (i).
An oblique sheet is made up of:
(a) Rectangles
(b) Squares
(c) Right angled triangles
(d) Equilateral triangles.
Answer:
(b) Squares
Question (ii).
An isometric sheet is made up of dots forming :
(a) Squares
(b) Rectangles
(c) Equilateral triangles
(d) Right angled triangle
Answer:
(c) Equilateral triangles
Question (iii).
An oblique sketch has :
(a) Proportional lengths
(b) Parallel lengths
(c) Non-Proportional lengths
(d) Perpendicular lengths.
Answer:
(c) Non-Proportional lengths
Question (iv).
An Isometric sketch has :
(a) Non proportional lengths
(b) Parallel lengths
(c) Perpendicular lengths
(d) Proportional lengths.
Answer:
(d) Proportional lengths.
Question (v).
Isometric sketches shows objects of:
(a) Two dimensions
(b) Shadows
(c) Three dimensions
(d) One dimension.
Answer:
(c) Three dimensions