Playing with Constructions Class 6 Very Short Question Answer

Playing with Constructions Class 6 Very Short Question Answer

Playing with Constructions Class 6 Very Short Question Answer

Question 1.

Draw a circle of radius 3.2 cm.

Solution:

Steps of Construction :

1. Mark a point O on the paper.

2. Open the compass for the required radius 3.2 cm.

3. Keep the steel end of the compass fixed at the point O and rotate the pencil end at 3.2 cm distance from O till it returns to the starting point P.

Then, the figure so obtained is the required circle.

Question 2.

With the same centre O, draw two circles of radii 4 cm and 2.5 cm.

Solution:

Steps of Construction :

1. Mark a point O on the paper.

2. Open the compass for the radii 4 cm and 2.5 cm (turnwise).

3. Keep the steel end of the compass fixed at the point O and rotate the pencil end at 4 cm and 2.5 cm (turnwise) distances from O till it returns to their starting points respectively.

The circles obtained are the required circles.

Note : Circles with the same centre are called concentric circles.

Question 3.

Draw a circle and any two of its diameters. If you join the ends of these diameters, what is the figure obtained ? What figure is obtained, if the diameters are perpendicular to each other ? How do you check your answer ?

Solution:

Steps of Construction :

1. Draw a circle with O as centre of any radius.

2. Draw any two diameters AOB and COD.

3. Join AC, CB, BD and DA.

Clearly, the figure ACBD is a rectangle.

When the diameters AOB and COD are perpendicular to each other :

Then, figure obtained on joining AC, CB, BD and DA is a square ACBD.

Question 4.

Draw a line segment of length 7.3 cm, using a ruler.

Solution:

Steps of Construction :

1. Mark a point A on the plane of the paper and place the ruler so that zero mark of the ruler is at A.

2. Mark with pencil a point B against the mark on the ruler which indicates 7.3 cm.

3. Join points A and B by moving the tip of the pencil against the straight edge of the ruler.

The line segment AB so obtained is the required line segment.

Question 5.

Construct a line segment of length 5.6 cm, using ruler and compass.

Solution:

Steps of Construction :

1. Mark a point A on the plane of the paper and draw a line, say l, passing through it.

2. Place the steel end of the compass at zero mark on the ruler and open out it such that the pencil end on the mark indicates 5.6 cm.

3. Transfer the compass as it is to the line l so that the steel end is on A.

4. With the pencil end make a small stroke on l so as to cut it at B.

The line segment AB so obtained is the required line segment.