Telangana SCERT Class 6 Maths Chapter 4 Solution – Basic Geometrical Ideas. Here in this post we provides Class 6 Maths Basic Geometrical Ideas Telangana State Board Solution. Telangana State Board English Class VI Medium Students can download this Solution to Solve out Improve Your Learning Questions and Answers.
Telangana State Board Class 6 Maths Chapter 4 Basic Geometrical Ideas Solution:
EXERCISE – 4.1
1.) Join the points given below. Name the line segments so formed in the figure
i) ANSWER:
By joining the line segments Triangle is formed.
The line segments are AB, BC, AC
ii)
By joining the line segments Pentagon is formed.
The line segments are PQ, QR, RS, ST, PT.
2)
i.) Any five points
ANSWER:
Five points are point A, point B, point C, point D and point O
ii.) Any five line segments
ANSWER:
Thefive line segments are AB, BC, AC,CD and BD
iii.) Any Three rays
ANSWER:
Three rays are OA, OB, OC and OD.
iv.) Any two lines
ANSWER:
Line AC and Line BD.
3.) How many lines can be drawn through
i.) One point
ANSWER:
Infinite lines can be drawn through one point.
ii.) Two distinct points
ANSWER:
There is only one line can be drawn through two distinct points.
Make a rough figure for your answer.
4.) Which of the following has a definite length?
i.) Line
ii.) Point
iii.) Line segment
iv.) Ray
ANSWER:
Line segment has a definite length
5.) How many end points do the following have?
i.) Line segment
ANSWER:
Line segment have 2 end points.
ii.) Ray
ANSWER:
Ray has 1 end points.
iii.) Line
ANSWER:
Line have no end points.
6.) Write ‘True’ or ‘False’.
i.) A line has no end points. ( )
ANSWER:
True. A line has no end points.
ii.) Ray is a part of a line. ( )
ANSWER:
True.Ray is a part of a line.
iii.) A line segment has no definite length. ( )
ANSWER:
False. A line segment has definite length.
iv.) A line segment has only one end point. ( )
ANSWER:
False. A line segment have two end point.
v.) We can draw many lines through a point. ( )
ANSWER:
True.We can draw many lines through a point.
7.) Draw and name:
i.) Line containing point P.
ANSWER:
We draw line containing point P.
ii.) Line passing through R.
ANSWER:
We draw line passing through R.
EXERCISE – 4.2
1.) Tick these figures which are simple curves
ANSWER:
From given figures, Simple curves are
2.) State which curves are open and which are closed
ANSWER:
From given figures, closed curves are
3.) Name the points that lie in the interior, on the boundary and in the exterior of the figure.
ANSWER:
From given figures,
Points that lie in the interior are A, B, E, G, I
Points that lieon the boundary are K, F, and C.
Points that liein the exterior of the figureareJ, D.
4.) Draw three simple closed figures:
i.) by straight lines only
ANSWER:
We have to draw three simple closed figures by straight lines only.
ii.) by straight lines and curved lines both
ANSWER:
We have to draw three simple closed figuresby straight lines and curved lines both.
EXERCISE – 4.3
1.) Name the angles, vertex and arms of the angles from the figure
ANSWER:
From given figure,
Angles are ∠BOC, ∠COD, ∠AOD and ∠AOB
Vertex are O, A, B, C and D
Arms are OA, OB, OC, and OD
2.) Name the angles formed in the figure.
ANSWER:
From given figure,
Angles formed in the figure are ∠BAD, ∠ABC, ∠BCD and∠ADC
3.) Mark the points in the figure which satisfy all the three conditions.
(i) A, B in the interior of ∠DOF
(ii) A, C in the exterior of ∠EOF
(iii) B on ∠DOE
ANSWER:
We draw figure which satisfy all three conditions.
4.) In which of the following figures, angles are formed?
ANSWER:
From given figures,
Angles are formed in following figures
EXERCISE – 4.4
1.) Mark any four points A, B, C and D. Join them to make a quadrilateral. Name it.
ANSWER:
We have to draw quadrilateral having four points A, B, C and D
2.) PQRS is a Quadrilateral. Answer the following.
i.) The opposite side of QR is ____________.
ANSWER:
From given figure,
The opposite side of QR isPS.
ii.) The angle opposite to ∠P is ____________.
ANSWER:
From given figure,
The angle opposite to ∠P is∠R
iii.) The adjacent sides of PQ are ____________.
ANSWER:
From given figure,
The adjacent sides of PQ arePS and QR
iv.) The adjacent angles of ∠S are ____________.
ANSWER:
From given figure,
The adjacent angles of ∠S are ∠P and∠R.
3.) Name the points marked in the figure
i.) The points in the interior of Quadrilateral.
ANSWER:
From given figure,
The points in the interior of Quadrilateralare S, R.
ii.) The points on the boundary of Quadrilateral.
ANSWER:
From given figure,
The points on the boundary of Quadrilateral areA, B, C, D, and E.
iii.) The points in the exterior of the Quadrilateral.
ANSWER:
From given figure,
The points in the exterior of the Quadrilateral are T, P, and Q
EXERCISE – 4.5
1.) Draw a circle and name its centre, a radius, a diameter and arc.
ANSWER:
We draw a circle having centre O.
Radius OA and OB
Diameter AB
Arc ACB and Arc ADB.
2.) Shade the regions in the circle
i.) Sector with red
We have to shade Sector with red.
ii.) Minor segment with yellow
ANSWER:
We have to shade Sector with red and minor segment with yellow
3.) Say ‘True’ or ‘False’
i.) We can locate only one centre in a circle ( )
ANSWER:
True. We can locate only one centre in a circle
ii.) Diameter is twice the radius ( )
ANSWER:
True.Diameter is twice the radius
iii.) An arc is a part of a circle ( )
ANSWER:
True.An arc is a part of a circle
iv.) All chords are equal in length ( )
ANSWER:
False. All chords are unequal in length.
v.) All radii are not equal in length in a circle ( )
ANSWER:
False. All radii are equal in length in a circle.
4.) Take a circular sheet of paper. Fold it into two halves. Press the fold and open it. Do you find the crease of a diameter? Repeat the same activity by changing the fold. How many diameters do you observe? How many more diameters can be formed?
ANSWER:
When we take a circular sheet of paper and fold it into two halves we get 1 diameter which is always passing through centre of circle.
When we repeat this process we get 1 diameter which is always passing through centre of circle.
We find infinite diameters.
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