#### Chapters

Chapter 2 - Linear Equations in One Variable

Chapter 3 - Understanding Quadrilaterals

Chapter 4 - Practical Geometry

Chapter 5 - Data Handling

Chapter 6 - Squares and Square Roots

Chapter 7 - Cubes and Cube Roots

Chapter 8 - Comparing Quantities

Chapter 9 - Algebraic Expressions and Identities

Chapter 10 - Visualising Solid Shapes

Chapter 11 - Mensuration

Chapter 12 - Exponents and Powers

Chapter 13 - Direct and Inverse Proportions

Chapter 14 - Factorisation

Chapter 15 - Introduction to Graphs

Chapter 16 - Playing with Numbers

## Chapter 10 - Visualising Solid Shapes

#### Pages 157 - 166

For each of the given solid, the two views are given. Match for each solid the

corresponding top and front views.

Can a polyhedron have for its faces 4 triangles?

For the given solid, the three views are given. Identify for each solid the corresponding top, front and side views.

Object |
(i) |
(ii) |
(iii) |

For the given solid, the three views are given. Identify for each solid the corresponding top, front and side views.

Object |
(i) |
(ii) |
(iii) |

For the given solid, the three views are given. Identify for each solid the corresponding top, front and side views.

Object |
(i) |
(ii) |
(iii) |

Object |
(i) |
(ii) |
(iii) |

For the given solid, identify the top view, front view and side view.

For the given solid, identify the top view, front view and side view.

For the given solid, identify the top view, front view and side view.

For the given solid, identify the top view, front view and side view.

For the given solid, identify the top view, front view and side view.

Draw the front view, side view and top view of the given objects.

A military tent

Draw the front view, side view and top view of the given objects.

A table

Draw the front view, side view and top view of the given objects.

A nut

Draw the front view, side view and top view of the given objects.

A hexagonal block

Draw the front view, side view and top view of the given objects.

A dice

Draw the front view, side view and top view of the given objects.

A solid

#### Page 163

Look at the given map of a city.

Answer the following.

(a) Colour the map as follows: Blue − water plant, red − fire station, orange − library, yellow − schools, green − park, pink − college, purple − hospital, brown − cemetery.

(b) Mark a green ‘X’ at the intersection of Road ‘C’ and Nehru Road, Green ‘Y’ at the intersection of Gandhi Road and Road A.

(c) In red, draw a short street route from library to the bus depot.

(d) Which is further east, the city park or the market?

(e) Which is further south, the Primary School or the Sr. Secondary School?

#### Pages 166 - 167

Can a polyhedron have for its faces 3 triangles?

Can a polyhedron have for its faces a square and four triangles?

Is it possible to have a polyhedron with any given number of faces? (**Hint:** Think of a pyramid).

The given Figure are prisms or not?

The given Figure are prisms or not?

The given Figure are prisms or not?

The given Figure are prisms or not?

How are prisms and cylinders alike?

How are pyramids and cones alike?

Is a square prism same as a cube? Explain.

Verify Euler’s formula for given solids

Verify Euler’s formula for given solids.

Using Euler’s formula, find the unknown.

Faces |
? | 5 | 20 |

Vertices |
6 | ? | 12 |

Edges |
12 | 9 | ? |

Can a polyhedron have 10 faces, 20 edges and 15 vertices?