SEBA Class 7 Maths Chapter 15 Visualising Solid Shapes Solutions | SCERT Assam
Get SEBA Class 7 Maths Chapter 15 Visualising Solid Shapes Solutions for Exercises 15.1, 15.2, and 15.3 in English Medium, as per the SCERT Assam syllabus. This chapter focuses on 3D shapes, perspectives, views, and mapping space around us, helping students understand geometry in real life.
Visualising Solid Shape
Exercise – 15.1 |
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1. Classify the following as two-dimensional and three dimensional objects- Sphere, Circle, Rectangle, Pyramid, Pencil box, Marble, Cube, Quadrilateral, Match box.
Ans: Two-dimensional- Circle, Rectangle, Quadrilateral.
Three-dimensional- Sphere, Pyramid, Pencilbox, Marble, Cube, Matchbox.
2. Write the name of three solid shapes which have no edge and vertex.
Ans: Sphere, football, orange.
3. How many vertices are there in a cone?
Ans: One.
4. Which of the following figures can be used for making cube? Discuss in a group.
Ans: Figures can be used for making cube: (i), (ii), (iii), (iv), (v).
5. Match the shapes of L.H.S. with the shapes of R.H.S.
Ans:
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(i) |
(ii) |
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(ii) |
(iv) |
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(iii) |
(i) |
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(iv) |
(iii) |
6. Discuss and identify the following rectilinear figure which can be used to make tetrahedron. Discuss.
Ans: Figure (i), (ii) & (iii) can be used to make tetrahedron.
Exercise – 15.2 |
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1. Draw an isometric sketch by observing the oblique sketch of the rectangle given in the figure.
Ans: An isometric sketch of the rectangle.
2. Draw an Isometric sketch and an oblique sketch having dimensions of 5 cm, 3 cm, 2 cm.
Ans:
An Isometric Sketch.
3. Write the name of a solid shape which has no vertex and plane surface.
Ans: A solid shape which has no vertex and plane surface is a ball.
4. Three cubes having dimensions of 3 cm, 3 cm and 3 cm each are placed one upon another what would be the length, breadth and height of the resulting object. Name it.
Ans: Cuboid; Length = 3 cm, Breadth = 3 cm, Height = 9 cm.
Exercise- 15.3 |
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1. How many cubes are there in Fig (i)
Ans: In the figure-(i), there are 4 Nos. of cube.
2. How many cubes are there in Fig. (ii)? If the dimension of one cube is 2 cm, 2 cm and 2 cm, then find the dimension of the cuboid?
Ans: 16 Nos, Length = 8 cm, Breadth = 4 cm, Height
3. Draw the views from different direction (front view, top view and side view) by keeping 5 cubes of same dimension one upon another as well as side by side.
Ans:The views from different direction (front view, top view and side view) we shown.
4. Draw a three dimensional figure of Ludo dice that gives the view of 5 dots from the side. If the dice would be seen from top, how many dots are to be seen. (discuss in group)top.
Ans: Three dots will be seen if we view the dice from top.
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1. What topics are covered in SEBA Class 7 Maths Chapter 15 Visualising Solid Shapes?
This chapter covers 3D shapes, front-view, top-view, side-view, cross-sections, and mapping space around us, essential for understanding spatial geometry.
2. How many exercises are there in Chapter 15 Visualising Solid Shapes?
There are three exercises: Exercise 15.1, Exercise 15.2, and Exercise 15.3, each focusing on different aspects of solid shapes and visualization techniques.
3. Are these solutions available in English Medium?
Yes, all solutions for SEBA Class 7 Maths Chapter 15 are available in English Medium, as per the SCERT Assam syllabus.
4. How do I scan the QR code to get the solutions?
Use any QR code scanner app to scan QR Code: H6U2C5, and you’ll be directed to the Visualising Solid Shapes solutions page.
5. Why is Visualising Solid Shapes important in Mathematics?
It helps students understand 3D objects, perspectives, and real-world applications of geometry, improving spatial reasoning skills.
