Page 130 - Fun with Mathematics 2

1. Answer the following questions.

(a) What is the shape of the floor of your bedroom? ___________
(b) What is the shape of the roof of your classroom? ___________

(c) What is the shape of the bottom of your water bottle? ___________
(d) What is the shape of a 1-rupee coin? ___________

2. Write the names of three objects with curved surfaces.

3. Who am I?
(a) I have 6 faces, 8 vertices and 12 edges. Each face of mine is rectangular in shape.

(b) I have 2 plane surfaces and 1 curved surface. My two edges are circular in shape.
I have no vertex.
(c) I am round in shape. I have only one curved surface with no vertex and no edge.
4
. Tick (ü) the correct answer.

(a) The shape of this surface of a cylinder is

(i) oval (ii) circle (iii) triangle (iv) square

(b) Each face of a cube is a

(i) rectangle (ii) square (iii) cylinder (iv) circle

(c) The meeting point of two sides is called
(i) face (ii) vertex (iii) edge (iv) none of these

(d) A sphere has _________ edges.
(i) 0 (ii) 2 (iii) 3 (iv) 1

(e) A watermelon has a _________ surface.
(i) curved (ii) square (iii) plane (iv) none of these

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