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\\November 3, 2023 11:36 AM Surender Prajapati Proof 5 Reader _________________________ Date: ___________________74

(g) The points ________, ________ and ________ lie in the interior of the circle.
(h) AB = ________ × OP.

(i) CD is a ________ of the circle. (j) The longest chord of the circle is ________.
2. State whether the following statements are true or false:
(a) The radius of a circle is double the diameter. __________

(b) We can draw many diameters, radii and chords on a circle. __________

(c) A circle can have many centres. __________
(d) Every diameter of a circle is its chord. __________
(e) Every chord of a circle is its diameter. __________

(f) The circumference of a circle depends on its radius. __________
3. Find the diameter of a circle whose radius is:

(a) 2.5 cm (b) 3 cm (c) 11 mm (d) 8 cm
4. Find the radius of a circle whose diameter is:
(a) 6 cm (b) 9 cm (c) 23 mm (d) 16 mm

5. Draw circles of the following radii by using compass:
(a) 3 cm (b) 3.8 cm (c) 4.5 cm (d) 5 cm

SOLID SHAPES

3D shapes are solid shapes or objects that have three dimensions (which are length, width,
and height), as opposed to two-dimensional objects which have only a length and a width.

Some examples of 3D shapes are cubes, cuboids, cones and cylinders.

Cube Cuboid Cylinder Cone
NET

A net is a 2D shape that can be obtained by opening a 3D shape.

Look at the following opening of an empty cubical box.

A cubical box
Net of the cubical box
Nets of a Cube

A cube is a 3D shape whose all faces are squares.

It has six faces, eight corners and twelve edges.

154 Mathematics-5