Page 164 - Start Up Mathematics_3

contd…

Number and Number and shape Number of
Solid shape
shape of faces of edges vertices

Cone
vertex
2, 1 flat and
4. curved face 1 curved 1, curved 1
flat face
curved edge

Cylinder
edge
3, 2 flat and
5. flat face 2, curved 0
curved face 1 curved

Hemisphere
curved edge 2, 1 flat and
6. flat face 1, curved 0
1 curved
curved face

EXERCISE 11.2

1. Give one word or a few words for the following statements.

(a) A figure with length, width and height ____________

(b) The side where 2 faces of a solid figure meet ____________
(c) The solid figure with 1 curved face and no vertex and edge ____________

(d) The shape of faces in a cuboid ____________

(e) The number of edges in a cylinder ____________

(f) The number of vertices in a cone ____________
2. Using the given grid, write the position of the vertices of the shapes drawn.

A B C D E F G H I J

1 • • • • • • • • • • I. ______________________

2 • • • • • • • II • • • ______________________

3 • • I • • • • • • • • II. ______________________

4 • • • • • • • • • • ______________________

156