Question

draw a circle of radius 7cm and mark the following
Centre O
Radius OA
Diameter PQ
Segment

Answer 1

Answer:

Step-by-step explanation:

Class –VI Mathematics (Ex. 14.1)

Answers

1. Steps of construction:

(a) Open the compass for the required radius of 3.2 cm.

(b) Make a point with a sharp pencil where we want the centre of

circle to be.

(c) Name it O.

(d) Place the pointer of compasses on O.

(e) Turn the compasses slowly to draw the circle.

It is required circle.

2. Steps of construction:

(a) Marks a point ‘O’ with a sharp pencil where we want the centre

of the circle.

(b) Open the compasses 4 cm.

(c) Place the pointer of the compasses on O.

(d) Turn the compasses slowly to draw the circle.

(e) Again open the compasses 2.5 cm and place the pointer of the

compasses on D.

(f) Turn the compasses slowly to draw the second circle.

It is the required figure.

3. (i) By joining the ends of two diameters, we get a rectangle. By

measuring, we find AB = CD = 3 cm, BC = AD = 2 cm, i.e., pairs

of opposite sides are equal and also ∠ A = ∠ B = ∠ C = ∠ D =

90 ,

, i.e. each angle is of 90 .

Henc,e it is a rectangle.

(ii) If the diameters are perpendicular to each other, then by

joining the ends of two diameters, we get a square.

By measuring, we find that AB = BC = CD = DA = 2.5 cm, i.e.,

all four sides are equal.

Also ∠ A = ∠ B = ∠ C = ∠ D = 90 ,

, i.e. each angle is of 90 .

Hence, it is a square.