Basic Geometrical Ideas-Solutions Ex-4.3
CBSE Class –VI Mathematics
NCERT Solutions
Chapter 4 Basic Geometrical Ideas (Ex. 4.3)
NCERT Solutions
Chapter 4 Basic Geometrical Ideas (Ex. 4.3)
Question 1. Name the angles in the given figure:
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_07.jpg)
Answer: There are four angles in given figure:
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_07.jpg)
Answer: There are four angles in given figure:
ABC, CDA, DAB, DCB
Question 2. In the given diagram, name the point(s):
(a) In the interior of DOE.
(b) In the exterior of EOF.
(c) On EOF.
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_08.jpg)
Answer: (a) Point interior of DOE : A
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_08.jpg)
Answer: (a) Point interior of DOE : A
(b) Points exterior of EOF : C, A, D
(c) Points on EOF : E, O, B, F
Question 3. Draw rough diagrams of two angles such that they have:
(a) One point in common.
(b) Two points in common.
(c) Three points in common.
(d) Four points in common.
(e) One ray in common.
Answer:
(a)![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_20.jpg)
(b)![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_21.jpg)
(c)![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_22.jpg)
(d)![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_23.jpg)
(e)![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_24.jpg)
(a)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_20.jpg)
(b)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_21.jpg)
(c)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_22.jpg)
(d)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_23.jpg)
(e)
![](https://media-mycbseguide.s3.amazonaws.com/images/static/ncert/06/mathematics/06_math_ncert_ch04_24.jpg)