NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
(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.
NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
Take centre O and open the compass up to 4 cm.
Draw a circle keeping the needle fixed at O.
Take the same centre O and open the compass up to 2.5 cm, and draw another circle.
The figure shows the required two circles with the same centre.
Q.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?
NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
(i) By joining the ends of two diameters, we get a rectangle. By measuring, we find AB = CD and BC = AD i.e., pairs
of opposite sides are equal and also
, 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 = 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.
NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
(i) Draw a line 'l 'Mark a point A on this line.
(ii) Place the compasses pointer on zero mark of the ruler. Open it to place the pencil pointup to 5.6 cm mark.
(iii) Without changing the opening of the compasses. Place the pointer on A and cut an arc' l ' at B. AB is the required line segment of length 5.6 cm.
NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
(i) Place the zero mark of the ruler at A.
(ii) Mark a point B at a distance 7.8 cm from A.
(iii) Again, mark a point C at a distance 4.7 from A.
(iv) By measuring BC , we find that BC = 3.1 cm
Q.4 Given
(Hint : Construct
NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
Q.5 Given
NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
(i) Construct
(ii) Take a point P on the given line l.
(iii) Construct
(IV) Construct
Verification : On measuring, we observe that
Thus,
NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
I : Draw
II : Draw a line l and mark a point A on it.
III: Open the compass equal to PQ.
IV : Place the needle of the compass at A and mark a point B on l.
Thus,
Q.2 Given some line segment
NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
I : Draw
II : Place the needle of the compass at A and the other pencil end at B.
III : Draw a line l and take a point P on it.
IV: With the same opening of the compass, place the needle at P and mark another point Q on l.
Thus
whose length is twice the length of
Q.2 Draw any line segment
NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
(i) Place a set-square on PQ such that one arm of
its right angle aligns along PQ
(ii) Place a ruler along the edge opposite to the right
angle of the set-square.
(iii) Hold the ruler fixed. Slide the set square along
the ruler till the point R touches the other arm of
the set square.
(iv) Join RM along the edge through R meeting PQ
at M. Then RM perpendicular PQ.
Q.3 Draw the perpendicular bisector of
NCERT Solutions for Class 6 Maths Chapter 14 Practical Geometry
Answer :
On measuring,